Video Observations from Southern CA USA, December 18, 2009

The cirrus clouds were back tonight with vengeance. It was mostly cloudy until 11UT (3am PST). The next hour seemed to be totally
clear and then clouds interfered again the next hour. The last 46 minutes had mostly clear skies again. The new "COM's" have been a
disappointment. They are supposed to be slightly weaker than the "DLM's" but the difference to me is striking with the "DLM's" being
the far stronger shower. Note that the first Ursid was detected tonight.

As the sun sets on another day it appears that I will be battling cirrus again tonight. Oh well, at least I can obtain a little data
instead of none at all!

Bob Lunsford

December 18, 2009

0151-0300 UT Teff 1.15 FOV 020 +55 TOTAL 00 SPO 00 ANT 00 COM -- DLM -- HYD -- MON -- URS 00
0300-0400 UT Teff 1.00 FOV 040 +55 TOTAL 01 SPO 01 ANT 00 COM -- DLM -- HYD -- MON -- URS 00
0400-0500 UT Teff 1.00 FOV 055 +55 TOTAL 00 SPO 00 ANT 00 COM -- DLM -- HYD -- MON 00 URS 00
0500-0600 UT Teff 1.00 FOV 070 +55 TOTAL 00 SPO 00 ANT 00 COM -- DLM 00 HYD 00 MON 00 URS 00
0600-0700 UT Teff 1.00 FOV 085 +55 TOTAL 02 SPO 02 ANT 00 COM -- DLM 00 HYD 00 MON 00 URS 00
0700-0800 UT Teff 1.00 FOV 100 +55 TOTAL 03 SPO 01 ANT 00 COM 00 DLM 01 HYD 00 MON 01 URS 00
0800-0900 UT Teff 1.00 FOV 115 +55 TOTAL 02 SPO 00 ANT 02 COM 00 DLM 00 HYD 00 MON 00 URS 00
0900-1000 UT Teff 1.00 FOV 130 +55 TOTAL 00 SPO 00 ANT 00 COM 00 DLM 00 HYD 00 MON 00 URS 00
1000-1100 UT Teff 1.00 FOV 145 +55 TOTAL 00 SPO 00 ANT 00 COM 00 DLM 00 HYD 00 MON 00 URS 00
1100-1200 UT Teff 1.00 FOV 160 +55 TOTAL 11 SPO 07 ANT 02 COM 00 DLM 01 HYD 01 MON 00 URS 00
1200-1300 UT Teff 1.00 FOV 175 +55 TOTAL 05 SPO 04 ANT 00 COM 00 DLM 00 HYD 01 MON 00 URS 00
1300-1346 UT Teff 0.77 FOV 185 +55 TOTAL 09 SPO 08 ANT 00 COM 00 DLM 00 HYD 00 MON 00 URS 01

TOTALS Teff 11.92 TOTAL 33 SPO 23 ANT 04 COM 00 DLM 02 HYD 02 MON 01 URS 01
Dec. 17 TOTALS 12.00 TOTAL 64 SPO 47 ANT 04 COM 01 DLM 07 HYD 04 MON 01 URS 00

The moon (+0.03%) was not visible during this session

Universal Time (UT) = PST+8 hrs
Teff = Effective observing time in hours
FOV = Center of camera's Field Of View
SPO = Sporadic (random) meteors
ANT = Antihelions
COM = Coma Berenicids
DLM = December Leonis Minorids
HYD = Sigma Hydrids
MON = Monocerotids
URS = Ursids