Oct 1 – 9 Meteors

During the night of October 8 UT the Draconids produced an outburst of activity for observers on the eastern side of the Atlantic. Based on visual reports, the IMO’s live ZHR chart showed a peak ZHR of between 300 and 400 meteor per hour. The bright Moon and preponderance of faint Draconids meant the actual observed rates were much lower.

Here in AZ the show was over by the time night fell. In fact, not a single Draconid was seen by my camera system only hours after the outburst. Except for a single meteor observed the night before the outburst, this year’s Draconids were their usual meager self for me.

With the Draconids past us, we are now looking forward to the Orionids which should peak on the 21st. Already a few Orionids have been seen each night since the 4th.

Bright (-3mag) SPO on 2011 Oct 6 @ 06:17 UT.

NTA meteor on 2011 Oct 6 @ 10:56 UT.

Obs  Date(UT)      Time    TOT SPO NTA STA ORI DAU OCA GIA EPC
TUS  2011-10-09   10h 46m   38  27  0   4   4   3   0   0   0
TUS  2011-10-08   09h 03m   28  18  3   5   1   0   0   1   0
TUS  2011-10-07   03h 01m   18  14  1   1   2   0   0   0   -
TUS  2011-10-06   06h 48m   20  14  2   0   2   1   1   -   -
TUS  2011-10-05   07h 10m   26  15  1   6   3   1   -   -   -
TUS  2011-10-04   02h 34m   8   7   0   0   1   0   -   -   -
TUS  2011-10-03   08h 18m   22  17  1   2   0   2   -   -   -

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
VISH - Visual observations from Hermosillo (Salvador Aguirre)
HERM - PARENI camera in Hermosillo (Salvador Aguirre)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
NTA - Northern Taurids 
STA - Southern Taurids 
ORI - Orionids
DAU - Delta Aurigids 
OCA - October Camelopardalids 
GIA - Draconids 
EPC - October Eta Piscids

Sep 18 – 31 Meteors

It has been a long time since I posted my nightly video meteor results. Part of the problem was our annual monsoon season here in Tucson. But the main problem was a series of mechanical and software issues that I just didn’t have the time to solve until a few weeks ago.

The 2011 monsoon was very similar to last years ‘nonsoon’. Though every night saw lots of clouds and rain threatened, little rain actually fell. That wouldn’t have been too much of a problem for my video set-up except for the fact that my ‘all-weather’ camera enclosure is no longer ‘all-weather’. So I decided to leave my camera off on those nights when it looked like it might rain. Since I was going to be down for weather reasons anyway I went ahead and upgraded to the latest version of the automatic meteor detection software, MetRec. That didn’t go so well and resulted in finally upgrading from an old PIII computer to a Pentium 4 machine. Now, knock on wood, everything seems to be working.

September is a month of high meteor rates. Sporadic meteors rates are near their annual peak. Though no major showers are active, a number of minor showers are consistent contributors to the high rates. Below are a collection of some of the best meteors from the last two weeks of September.

Long-lasting (~3.5+ sec) SPO seen on 2011 Sep 18 @ 05:47 UT.

Bright (~-2 mag) SPO on 2011 Sep 22 @ 06:58 UT.

Another SPO from 2011 Sep 23 (08:17 UT).

A third SPO from 2011 Sep 23 (10:00 UT).

Almost 2 sec in duration SPO on 2011 Sep 25 @ 06:07 UT.

Nu Eridanid fireball (~-4 to -5 mag) on 2011 Sep 26 @ 08:33 UT.

SPO racing north out of Auriga on 2011 Sep 26 @ 12:07 UT.

Obs  Date(UT)      Time    TOT SPO ANT NTA STA NUE SPE DAU
TUS  2011-09-31   10h 17m   37  25  -   2   7   -   -   3
TUS  2011-09-30   07h 34m   33  26  -   4   2   -   -   1
TUS  2011-09-29   09h 44m   36  29  -   2   3   -   -   2
SDG  2011-09-27   04h 21m   28  27  1   -   0   -   -   -
TUS  2011-09-25   05h 49m   25  22  1   -   -   2   -   0
TUS  2011-09-24   09h 29m   38  28  5   -   -   4   -   1
TUS  2011-09-23   09h 39m   35  32  1   -   -   1   -   1
TUS  2011-09-22   08h 25m   33  24  3   -   -   6   -   0
TUS  2011-09-21   08h 54m   30  25  0   -   -   1   -   4
TUS  2011-09-20   10h 06m   30  25  1   -   -   1   -   3
TUS  2011-09-19   09h 41m   25  20  3   -   -   1   1   -
TUS  2011-09-18   09h 38m   39  34  3   -   -   2   0   -

SAL3 - SALSA3 camera in Tucson (Carl Hergenrother)
ALLS - Near all-sky camera in Tucson (Carl Hergenrother)
VIST - Visual observations from Tucson (Carl Hergenrother)
VISH - Visual observations from Hermosillo (Salvador Aguirre)
HERM - PARENI camera in Hermosillo (Salvador Aguirre)
SDG - Camera in San Diego operated by Bob Lunsford
Time - Total amount of time each camera looked for meteors
TOT - Total number of meteors detected
SPO - Sporadics (meteors not affiliated with any particular meteor shower)
ANT - Antihelions
NTA - Northern Taurids 
STA - Southern Taurids NUE - Nu Eridanids 
SPE - September Perseids 
DAU - Delta Aurigids

Meteor Activity Outlook for September 17-23, 2011

The following is a slightly edited version of Bob Lunsford’s excellent weekly summary of meteor activity. The original version can be found at the American Meteor Society’s site.

September offers longer nights in the northern hemisphere that tend to be less hazy than those experienced in mid-summer. In the sky, no major showers are visible from either hemisphere but the northern hemisphere enjoys the advantage of higher sporadic rates. Most of the shower activity this month is produced from the Perseus-Aurigid complex active this time of year. These showers rarely produce more than five meteors per hour but still manage to produce most of the shower activity seen this month. Unfortunately the Perseus-Aurigid complex lies too low in the northern sky for southern hemisphere observers to view very well. Video studies have shown that the Southern Taurids are visible as early as September 7th therefore after this date the Antihelion radiant will no longer be listed until the Taurid showers end in December. The Antihelion meteors are still active but their radiant is superimposed upon that of the more numerous Taurids, therefore it is impossible to properly separate these meteors. Observers in the southern hemisphere suffer from some of their lowest rates of the year this month. The Southern Taurid radiant is not too badly placed so observers south can expect to see a little of this activity this month.

During this period the moon reaches its last quarter phase on Tuesday September 20th. At this time the moon will lie ninety degrees west of the sun and will rise near 0100 local daylight time (LDT) as seen from mid-northern latitudes. This weekend the waning gibbous moon will interfere with meteor observing during the morning hours. Skies will be dark during the early evening hours until moon rise, which will occur during the late evening hours. It would be better to wait until later this week to view meteor activity, when the moon becomes less bothersome. The estimated total hourly rates for evening observers this week is near four as seen from the northern hemisphere and two as seen from the southern hemisphere. For morning observers the estimated total hourly rates should be near nine as seen from mid-northern latitudes and six from mid-southern latitudes. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. Morning rates are reduced due to moonlight.

The radiant (the area of the sky where meteors appear to shoot from) positions and rates listed below are exact for Saturday night/Sunday morning September 17/18. These positions do not change greatly day to day so the listed coordinates may be used during this entire period.

The following showers are expected to be active this week:

The Southern Taurid (STA) radiant is now centered at 01:08 (017) +05. This area of the sky lies in southern Pisces, three degrees north of the fourth magnitude star Epsilon Piscium. This radiant is best placed near 0200 LDT, when it lies on the meridian and is located highest in the sky.  Rates at this time should be near two per hour no matter your location. With an entry velocity of 27 km/sec., the average Southern Taurid meteor would be of medium-slow speed.

Many radiants in the region of Eridanus have been suspected this time of year. Recent studies of the IMO’s video database by Sirko Molau and Juergen Rendtel has verified a radiant active in Eridanus from September 3rd through the 24th with maximum activity occurring on the 7th. The Nu Eridanid (NUE) radiant is currently located at 04:53 (073) +06. This position lies in western Orion near the third magnitude star Pi 3 Orionis. The radiant is best placed during the last hour before the start of morning twilight. Rates may be close to one per hour this week. With an entry velocity of 68 km/sec., most activity from this radiant would be swift. With the radiant lying close to the celestial equator, these meteors are seen equally well from both hemispheres.

As seen from the mid-northern hemisphere (45N) one would expect to see approximately six sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near three per hour. As seen from the mid-southern hemisphere (45S), morning rates would be near three per hour as seen from rural observing sites and one per hour during the evening hours. Locations between these two extremes would see activity between the listed figures. Morning rates are reduced by moonlight.

The list below presents a condensed version of the expected activity this week. Rates and positions are exact for Saturday night/Sunday morning.

Shower Name                 RA     DEC   Vel     Rates
                                         km/s   NH    SH
STA Southern Taurids      01h 08m  +05    27     2     2
NUE nu Eridanids          04h 53m  +06    68     1     1

RA - Right Ascension
DEC - Declination
Vel - Velocity relative to Earth (in km per sec)
Rates - Rate of visible meteors per hour from a dark site
NH - Northern Hemisphere
SH - Southern Hemisphere

Meteor Activity Outlook for September 10-16, 2011

The following is a slightly edited version of Bob Lunsford’s excellent weekly summary of meteor activity. The original version can be found at the American Meteor Society’s site.

September offers longer nights in the northern hemisphere that tend to be less hazy than those experienced in mid-summer. In the sky, no major showers are visible from either hemisphere but the northern hemisphere enjoys the advantage of higher sporadic rates. Most of the shower activity this month is produced from the Perseus-Aurigid complex active this time of year. These showers rarely produce more than five meteors per hour but still manage to produce most of the shower activity seen this month. Unfortunately the Perseus-Aurigid complex lies too low in the northern sky for southern hemisphere observers to view very well. Video studies have shown that the Southern Taurids are visible as early as September 7th therefore after this date the Antihelion radiant will no longer be listed until the Taurid showers end in December. The Antihelion meteors are still active but their radiant is superimposed upon that of the more numerous Taurids, therefore it is impossible to properly separate these meteors. Observers in the southern hemisphere suffer from some of their lowest rates of the year this month. The Southern Taurid radiant is not too badly placed so observers south can expect to see a little of this activity this month.

Meteor season finally gets going in July for the northern hemisphere. The first half of the month will be much like June. After the 15th though, both sporadic and shower rates increase significantly. For observers in the southern hemisphere, sporadic rates will be falling but the overall activity will increase with the arrival of the Delta Aquariids.

During this period the moon reaches its full phase on Monday September 12th. At this time the moon will lie opposite the sun and will be in the sky all night long. This is the worst time to try and view meteor activity this month as the intense moonlight will obscure all but the brightest meteors. Conditions will not improve until the moon wanes to its last quarter phase and does not rise until near 0100 local daylight time (LDT). The estimated total hourly rates for evening observers this week is near two as seen from the northern hemisphere and one as seen from the southern hemisphere. For morning observers the estimated total hourly rates should be near eight as seen from mid-northern latitudes and five from mid-southern latitudes. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. Rates are reduced during this period due to the intense moonlight.

The radiant (the area of the sky where meteors appear to shoot from) positions and rates listed below are exact for Saturday night/Sunday morning September 11/12. These positions do not change greatly day to day so the listed coordinates may be used during this entire period.

Detailed descriptions of the active showers will continue next week when the moonlight conditions will be more favorable. The following showers are expected to be active this week. Rates and positions are exact for Saturday night/Sunday morning.

Shower Name                  RA     DEC   Vel     Rates
                                          km/s   NH    SH
STA Southern Taurids       00h 48m  +03    27     1     1
SIC Sept Iota Cassiopeiids 02h 27m  +64    50    <1    <1
SPE Sept Epsilon Perseids  03h 12m  +41    66    <1    <1
NUE Nu Eridanids           04h 36m  +03    68     1     1

RA - Right Ascension
DEC - Declination
Vel - Velocity relative to Earth (in km per sec)
Rates - Rate of visible meteors per hour from a dark site
NH - Northern Hemisphere
SH - Southern Hemisphere

Meteor Activity Outlook for September 18-24, 2010

The Meteor Activity Outlook is a weekly summary of expected meteor activity written by Robert Lunsford, Operations Manager of the American Meteor Society and contributor to this blog. The original unedited version of this week’s Meteor Activity Outlook can be found at the American Meteor Society’s site.

September offers longer nights in the northern hemisphere that tend to be less hazy than those experienced in mid-summer. In the sky, no major showers are visible from either hemisphere but the northern hemisphere enjoys the advantage of higher sporadic rates. Most of the shower activity this month is produced from the Perseus-Aurigid complex active this time of year. These showers rarely produce more than five meteors per hour but still manage to produce most of the shower activity seen this month. Unfortunately the Perseus-Aurigid complex lies too low in the northern sky for southern hemisphere observers to view very well. Video studies have shown that the Southern Taurids are visible as early as September 7th therefore after this date the Antihelion radiant will no longer be listed until the Taurid showers end in December. The Antihelion meteors are still active but their radiant is superimposed upon that of the more numerous Taurids, therefore it is impossible to properly separate these meteors. Observers in the southern hemisphere suffer from some of their lowest rates of the year this month. The Southern Taurid radiant is not too badly placed so observers south can expect to see a little of this activity this month.

During this period the moon reaches its full phase on Thursday September 23rd. At this time the moon will be located opposite the sun and will rise as the sun sets and sets as the sun rises. This weekend the waxing gibbous moon will set during the early morning hours and will allow a short window of opportunity between moonset and morning twilight to view meteor activity under dark conditions. The estimated total hourly rates for evening observers this week is ~2 from the northern hemisphere and ~1 from the southern hemisphere. For morning observers the estimated total hourly rates should be ~16 from the northern hemisphere and ~6 as seen from the southern hemisphere. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity.

The radiant positions and rates listed below are exact for Saturday night/Sunday morning September 18/19. These positions do not change greatly day to day so the listed coordinates may be used during this entire period.

As seen from the mid-northern hemisphere (45N) one would expect to see approximately five sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near two per hour. As seen from the mid-southern hemisphere (45S), morning rates would be near fourteen per hour as seen from rural observing sites and three per hour during the evening hours. Locations between these two extremes would see activity between the listed figures. Morning rates are slightly reduced due to moonlight.

The following showers are expected to be active this week:

Southern Taurids (STA)

The center of the large Southern Taurid (STA) radiant lies at 00:56 (014) +05. This position lies in southern Pisces, three degrees southeast of the fourth magnitude star Delta Piscium. Since the radiant is so large, any meteor from Pisces, western Cetus, or southwestern Pegasus could be a candidate for this shower. The radiant is best placed near the meridian near 0200 LDT, but activity may be seen all night long. Striking the atmosphere at 29 km/sec., the average Southern Taurid meteor travels slowly through the skies. Rates this week should be near two per hour no matter your location.

Nu Eridanids (NUE)

Many radiants in the region of Eridanus and Orion have been suspected this time of year. Recent studies have verified a radiant active in Eridanus and moving on into Orion from September 3rd through the 24th with maximum activity occurring on the 6th. The Nu Eridanid (NUE) radiant is currently located at 05:00 (075) +06. This position lies in western Orion, five degrees west of the second magnitude star Bellatrix (Gamma Orionis). Old time observers may recall a radiant active in Orion this time of year called the Sigma Orionids. This may be a verification of that activity. The radiant is best placed near 0500 LDT, when it lies highest above the horizon in a dark sky. Rates should less than one per hour this week. With an entry velocity of 68 km/sec., most activity from this radiant would be swift. With the radiant lying close to the celestial equator, these meteors are seen equally well from both hemispheres.

The list below presents a condensed version of the expected activity this week. Rates and positions are exact for Saturday night/Sunday morning.

Shower Name                 RA     DEC   Vel     Rates
                                         km/s   NH    SH
STA Southern Taurids      00h 56m  +05    30     2     2
NUE Nu Eridanids          05h 00m  +06    68    <1    <1

RA - Right Ascension
DEC - Declination
Vel - Velocity relative to Earth (in km per sec)
Rates - Rate of visible meteors per hour from a
        dark site
NH - Northern Hemisphere
SH - Southern Hemisphere

Meteor Activity Outlook for September 11-17, 2010

The Meteor Activity Outlook is a weekly summary of expected meteor activity written by Robert Lunsford, Operations Manager of the American Meteor Society and contributor to this blog. The original unedited version of this week’s Meteor Activity Outlook can be found at the American Meteor Society’s site.

September offers longer nights in the northern hemisphere that tend to be less hazy than those experienced in mid-summer. In the sky, no major showers are visible from either hemisphere but the northern hemisphere enjoys the advantage of higher sporadic rates. Most of the shower activity this month is produced from the Perseus-Aurigid complex active this time of year. These showers rarely produce more than five meteors per hour but still manage to produce most of the shower activity seen this month. Unfortunately the Perseus-Aurigid complex lies too low in the northern sky for southern hemisphere observers to view very well. Video studies have shown that the Southern Taurids are visible as early as September 7th therefore after this date the Antihelion radiant will no longer be listed until the Taurid showers end in December. The Antihelion meteors are still active but their radiant is superimposed upon that of the more numerous Taurids, therefore it is impossible to properly separate these meteors. Observers in the southern hemisphere suffer from some of their lowest rates of the year this month. The Southern Taurid radiant is not too badly placed so observers south can expect to see a little of this activity this month.

During this period the moon reaches its new phase on Wednesday September 15th. At this time the moon will be located ninety degrees east of the sun and will will set near 0100. This weekend the waxing crescent moon will set during the late evening hours and will not interfere with meteor observing during the prime morning hours. The estimated total hourly rates for evening observers this week is ~3 from the northern hemisphere and ~2 from the southern hemisphere. For morning observers the estimated total hourly rates should be ~20 from the northern hemisphere and ~10 as seen from the southern hemisphere. The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity.

The radiant positions and rates listed below are exact for Saturday night/Sunday morning September 11/12. These positions do not change greatly day to day so the listed coordinates may be used during this entire period.

As seen from the mid-northern hemisphere (45N) one would expect to see approximately five sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near two per hour. As seen from the mid-southern hemisphere (45S), morning rates would be near fourteen per hour as seen from rural observing sites and three per hour during the evening hours. Locations between these two extremes would see activity between the listed figures. Morning rates are slightly reduced due to moonlight.

The following showers are expected to be active this week:

Southern Taurids (STA)

Recent video studies by Sirko Molau and Juergen Rendtel have revealed that activity from the Southern Taurids (STA) is actually detectable beginning on September 7th. So from now until December 10th, the Taurid radiants will replace the Antihelion source since they overlap and cannot be separated. The large Southern Taurid radiant is now centered at 00:32 (008) +04. This area of the sky lies on the Pisces/Cetus border, five degrees southwest of the fourth magnitude Delta Piscium. The radiant is large so that any meteor from Pisces, northern Cetus, northeastern Aquarius, or southeastern Pegasus could be a candidate for this shower. This radiant is best placed near 0200 LDT when it lies on the meridian and is located highest in the sky. Maximum activity is not until October 10th so current rates should be ~3 no matter your location. With an entry velocity of 29 km/sec., the average Southern Taurid meteor would be of medium-slow speed.

September Iota Cassiopeiids (SIC)

Studies of the IMO’s vast video database by Sirko Molau and Juergen Rendtel has revealed a radiant active in Cassiopeia this time of year. The September Iota Cassiopeiids (SIC) are active from September 4th through the 13th with maximum activity occurring on the 11th. The radiant position is currently located at 02:28 (037) +66. This position lies in eastern Cassiopeia, five degrees northeast of the third magnitude star Segin (Epsilon Cassiopeiae). The radiant is best placed near 0500 LDT, when it lies highest above the horizon. Rates throughout the activity period are expected to remain <1 per hour. With an entry velocity of 50 km/sec., most activity from this radiant would be swift. Due to the high northern declination (celestial latitude) meteors from this shower are not well seen from the southern hemisphere.

September Epsilon Perseids (SPE)

The September Epsilon Perseids (SPE) are active from September 5th through the 13th with maximum activity occurring on the 9th. The radiant position is currently located at 03:16 (049) +41. This position lies in southwestern Perseus, only two degrees east of the famous eclipsing variable star known as Algol (Beta Persei). The radiant is also best placed near 0500 LDT, when it lies highest above the horizon. Rates are expected to be <1 per hour. With an entry velocity of 66 km/sec., most activity from this radiant would be swift. This activity is visible down to the tropical regions of the southern hemisphere. While watching for the September Epsilon Perseids I would suggest also watching for any activity from the original IMO September Perseid radiant. There have been reports of activity from this source this year including an estimated -11 fireball on September 9th. The radiant is active from a position of 04:08 (062) +47. This position is located in eastern Perseus near the fourth magnitude star Upsilon Persei. Activity is expected through September 17th.

Nu Eridanids (NUE)

Many radiants in the region of Eridanus have been suspected this time of year. Recent studies of the IMO’s vast video database by Sirko Molau and Juergen Rendtel has verified a radiant active in Eridanus from September 3rd through the 24th with maximum activity occurring on the 6th. The Nu Eridanid (NUE) radiant is currently located at 04:40 (070) +03. This position lies in a remote region of northeastern Eridanus, a dozen degrees due south of the bright first magnitude orange star Aldebaran (Alpha Tauri). The radiant is best placed near 0500 LDT, when it lies highest above the horizon in a dark sky. Rates should be 1-2 per hour this week. With an entry velocity of 68 km/sec., most activity from this radiant would be swift. With the radiant lying close to the celestial equator, these meteors are seen equally well from both hemispheres.

The list below presents a condensed version of the expected activity this week. Rates and positions are exact for Saturday night/Sunday morning.

Shower Name                 RA     DEC   Vel     Rates
                                         km/s   NH    SH
STA Southern Taurids      00h 32m  +04    30     3     3
SIC Iota Cassiopeiids     02h 28m  +66    50    <1    <1
SPE Sept Epsilon Perseids 03h 16m  +41    66    <1    <1
NUE Nu Eridanids          04h 40m +03    68     2     2

RA - Right Ascension
DEC - Declination
Vel - Velocity relative to Earth (in km per sec)
Rates - Rate of visible meteors per hour from a
        dark site
NH - Northern Hemisphere
SH - Southern Hemisphere

Sept 20/21/22 Meteors

Meteor activity remains strong over the past few night. Low levels of activity continue to radiate from the Perseus/Auriga area (where the Delta Aurigids and other poorly defined radiants may be active) and the Nu Eridanid radiant which is currently located near the “shield” of Orion.

The Nu Eridanids (NUE) is a newly recognized shower which has been identified in the video data of the SonotaCo network (Japan) and the IMO Video network (Europe/US, which includes the cameras operated by myself and Bob). The cameras operated by myself and Bob are part of the IMO network.

The NUE are active from Sept 3 to 24 with a peak around the date of Sept 7. Though there has not been any published work on the visual rates of this shower, it most likely only produces a meteor or three per hour for observers at dark sites. Salvador Aguirre of Hermosillo, Mexico reports that he was able to observe 2 NUEs on the morning of Sept 17 during ~40 minutes of observing under a dark +6.2 mag sky. With a velocity of ~68 km/s the NUEs were most likely created by an unknown retrograde long-period comet.

Obs Date (UT)   TotTime  TOT SPO ANT DAU NUE
TUS 2009-09-22  09h 50m   32  20  1   4   7
SDG 2009-09-22  07h 27m   38  32  6   0
TUS 2009-09-21  09h 24m   37  28  3   4   2
SDG 2009-09-21  08h 00m   56  43  11  2
TUS 2009-09-20  09h 19m   29  22  1   3   3
SDG 2009-09-20  03h 00m   4   4   0   0

TUS – Camera in Tucson operated by Carl Hergenrother
SDG – Camera in San Diego operated by Bob Lunsford
TotTime – Total amount of time each camera looked for meteors
TOT – Total number of meteors detected
SPO – Sporadics (meteors not affiliated with any particular meteor shower)
ANT – Antihelions
DAU – Delta Aurigids
NUE – Nu Eridanids

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