(meteorobs) Obs HALWA Sept 16-19 (4 mornings)
meteoreye at comcast.net
meteoreye at comcast.net
Fri Sep 28 11:56:12 EDT 2007
Since I observed 4 consecutive mornings, decided to combine in one e-mail
Observer Wayne T Hally
Location NJAA Observatory, High Bridge, NJ
74d53m54s W, 40d40m52s N, 253M elev
F=1.00 all periods
Almost all meteors plotted, plot times measured from audio tape to derive Teff.
FOV SSE @ 65d elevation
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UT Date 2007 Sept 16
UT Time 0549-0915
Shower RA Dec
SPE 067, +48
ANT 006, +03
EER 062, -14
KAQ 337, +06
LYN 121, +56
Time Teff LM SPE ANT EER KAQ SPO TOT Met/Hr
0549-0701 1.050 +5.68 1 2 0 1 8 12 11.4
0701-0808 1.023 +5.73 3 0 0 0 4 7 6.8
0808-0915 1.053 +5.75 0 0 2 0 4 6 5.7
Totals
3.127 Teff
Avg LM +5.72
SPE 4 1.3/Hr (Avg Mag +3.67)
ANT 2 0.6/Hr (Avg Mag +1.0)
EER 2 0.6/Hr (Avg Mag +3.0)
KAQ 1 0.3/Hr (Mag +2.5)
SPO 16 5.1/Hr (Avg Mag +2.91)
Total Meteors 25, 8.0/Hr. Avg Mag +2.70
Once again, falling rates as LM improved. This decline was not fatigue related,
since I was quite alert and had good rest beforehand.
I examined 4 SPE's for correlation with current IMO radiant (067,+48) vs Sirko
Molaus's
video derived radiant (058, +41). Of the 4, 2 aligned better with SM radiant,
two aligned with both radiants.
4 casual satellites observed during last period.
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UT Date 2007 Sept 17
UT Time 0551-0915
Shower RA Dec
SPE 068, +48
ANT 007, +04
KAQ 338, +06
Time Teff LM SPE ANT KAQ SPO TOT Met/Hr
0551-0711 1.158 +5.55 1 3 1 10 15 13.0
0711-0831 1.292 +5.60 1 2 0 0 3 2.3
0831-0915 0.623 +5.55 2 0 0 8 10 16.1
Totals for 9/17
Teff 3.073
Avg LM +5.56
SPE 4 1.3/Hr (Avg Mag +2.88)
ANT 5 1.6/Hr (Avg Mag +2.00)
KAQ 1 0.3/Hr (Mag +4)
SPO 18 5.9/Hr (Avg Mag +2.78)
Total Meteors 28 9.1/Hr (Avg Mag +2.71)
What a brutal middle hour, only 3 meteors (no SPO) in 1.292 Teff. Yuck!
Again, fatigue not an issue, just no meteors!
Examined SPEs for current IMO radiant (068,+48) versus Sirko Molau's
video radiant (060,+41). Of the 4, 3 aligned better with the SM,
1 with the IMO radiant.
Only 1 satellite (in middle period)
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UT Date 2007 Sept 18
UT Time 0505-0917
Shower RA, Dec
DAU 069 +48
ANT 008 +04
KAQ 339 +06
Time Teff LM DAU KAQ ANT SPO TOT Met/Hr
0505-0608 0.967 +5.70 0 0 2 5 7 7.2
0608-0711 0.922 +5.73 1 1 4 4 10 10.8
0711-0814 0.912 +5.77 5 0 1 5 11 12.1
0814-0917 0.960 +5.60 2 0 0 6 8 8.3
Totals for 2007 Sept 18
Teff 3.760
Avg LM +5.70
DAU 8 2.1/Hr (Avg Mag +2.06)
ANT 7 1.9/Hr (Avg Mag +2.36)
KAQ 1 0.3/Hr (Mag +3.5)
SPO 20 5.3/Hr (Avg Mag +1.98)
Total Meteors 36, 9.6/Hr (Avg Mag +2.11)
Surprisingly active night for DAUs.
Compared current IMO radiant (069,+48) to Sirko Molau's video derived
(055,+29)radiant.
Of the 8, 4 aligned better with each radiant. I used a slightly larger than
normal
radiant elongated in the direction between, centered more toward the IMO
position for shower association.
Highlight of the month was a 70 degree long, orange,
slow earthgrazer; mag +0.5 at 0654. Too long to plot.
Start was ~ 095,+43; end 045,+3. ~12 deg/sec.
Fun item, the -2 SPO @ 0801 hit Mars at it's endpoint, with 4 second train.
Thought maybe Phoenix was arriving a little early!
4 casual satellites observed during last period.
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UT Date 2007 Sept 19
UT Time 0537-0617
Shower RA Dec
DAU 070, +48
KAQ 340, +06 (None observed)
ANT 009, +05
Time Teff LM DAU ANT SPO TOT Met/Hr
0537-0617 0.612 +5.45 0 2 4 6 9.8/Hr
ANT 2 3.3/Hr (Avg Mag +4.0)
SPO 2 6.5/Hr (Avg Mag +2.88)
Total Meteors: 6 9.8/Hr (Avg Mag +3.25)
Night was supposed to be clear, but thin clouds rapidly overtook the sky.
I stopped as they impinged on my FOV so no effect on F.
Waited 2 hours for them to pass, they didn't.
Also looked for Sirko Molau's DAU radiant (058,+30), and KAQ (340,+6).
None seen.
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