This morning I was facing south to concentrate on the southern showers. As has been the case recently the humidity has been high and the transparency has been poor. The light dome from San Diego was bad, affecting the sky toward the west and southwest. So the sky east of the meridian was impressive but west of the meridian was poor. Despite this I managed to count 52 meteors during 3.33 hours of viewing. Both the first and last periods were strong but there was a noticeable dip in activity during the middle hour. The Southern delta Aquariids were the most active shower by a long shot. They did not reach the 10/hr rate but were still nice. The best meteor of the night was a –2 Perseid that shot through Pegasus and Aquarius. The one gamma Draconid seen was pure luck. Just before I quit for the night I heard a noise behind me and turned around to see a nice 2nd magnitude GDR skim the northern horizon heading eastward. It was a nice way to end the session!
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Observer: Robert Lunsford (LUNRO)
Date: 17- Jul 29 Mean Solar Long: 126.202
Beginning Time (UT) 0840 Ending Time (UT) 1200
Total TeFF: 3.33 LOCATION: Blossom Valley, CA, USA
LONG: 116 51′ 37″ W LAT: 32 51′ 44″ N
Elevation: 304 m Bortle Scale: Class 4: Rural-Suburban Transition
Beginning Temperature/Relative Humidity: 66F (19C) – 82%
Ending Temperature/Relative Humidity: 64F (18C) – 87%
METHOD: Visual Recording using audio recording device
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Showers Observed ANT 21:12 (318 -16 01-01-01 3 Total CAP 20:20 (305) -10 01-00-00 1 Total GDR 18:42 (281) +50 00-00-01 1 Total JPE 00:14 (004) +15 01-00-00 1 Total PER 01:46 (027) +54 01-03-02 6 Total
SDA 22:40 (340) -17 07-05-08 20 Total
SPO 09-04-07 20 Total
Hourly Counts 20-13-19 52 Total
————————— Period 1 0840-0940 UT
F = 1.00 (0% Clouds) Mean LM 5.82
FOV 330 +00 TOTAL TeFF: 1.00 Mean Solar Long: 126.206
SHOWER DATA
1 ANT +3 1 CAP +3 1 JPE +4 1 PER -1 7 SDA +1 (1) +2 (1) +3 (1) +4 (4) Mean +3.14 9 SPO +1 (1) +2 (3) +3 (1) +4 (1) +5 (3) Mean + 3.22
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Period 2 0940-1040 UT
F = 1.00 (0% Clouds) Mean LM 5.78
FOV 345 +00 TOTAL TeFF: 1.00
Mean Solar Long: 126.246
SHOWER DATA
1 ANT +2 3 PER -2 (1) +1 (1) +3 (1) Mean +0.67 5 SDA +2 (1) +3 (1) +4 (1) +5 (1) Mean +2.50 4 SPO +1 (1) +4 (2) +5 (1) Mean + 3.50
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Period 3 1040-1200 UT
F = 1.00 (0% Clouds) Mean LM 5.74 FOV 000 +00 TOTAL TeFF: 1.33
Mean Solar Long: 126.286
SHOWER DATA
1 ANT 0 1 GDR +2 2 PER 0 (1) +2 (1) Mean +1.00 8 SDA -1 (1) 0 (1) +1 (1) +2 (3) +3 (2) Mean +1.50 7 SPO +2 (1) +3 (2) +4 (3) +5 (1) Mean + 3.57
