Hello to all. I have put out my preliminary results below for the
maximum night. There was 3 hours of observing in the evening prior to the
maximum (not included here).
It was a fantastic trip and a fantastic night. I have never seen a
display like what I saw on that night. At the beginning a huge highlight,
a -5 split the sky and heralded what was to become an awesome display lasting
over 3 hours. For myself I reached a peak ZHR of around 3900 using a
r value of 2.0 between 03.17 and 03.30 CST (17.47 and 18.00 UT). This is
only based on my data so far.
Our observing group consisted of about 35 people from The Astronomical
Society of Victoria, Australia, Astronomical Society of Frankston, Australia and
observers from other areas in Australia. We observed from the Bond Springs
Airfield about 30 kms north of Alice Springs. Elevation 720 meters. (Time
Zone +9.5) This is separate from the US team that went to the Bond Springs
Homestead a short distance away.
Some other observers names from our trip include:
Adam Marsh, Roger Vodicka, Geoff Carstairs, Martin Rudd, Richard Pollard,
Shane Majoros, Glenn and Anne Williams, Lance Kelly, Paul Medcraft. (Sorry
to those if I left you out)
Go to the photos section and they're in the folder under Adam Marsh's
Leonids Images
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Heres the break up of observations.
Leonids Activity from 01.20 LT (15.50 UT) onwards
F = 1.0 for entire session.
LM = +6.7 unless otherwise stated
CST = Central Australian Time
r = 2.0 (ZHR calculations)
Period (CST) Period
(UT) Duration #
Leo ZHR Error (+/-)
01.20-01.30 15.50-16.00 10
mins
3 901
(498)
01.30-01.40 16.00-16.10 10
mins
11 1188
(342)
01.40-01.50 16.10-16.20 10
mins
13 860
(228)
01.50-02.00 16.20-16.30 10
mins
24 1142
(223)
02.00-02.10 16.30-16.40 10
mins
45 1675
(239)
02.10-02.20 16.40-16.50 10
mins
63 1925
(232)
02.20-02.33 16.50-17.03 13
mins
108 2182
(201) ***
02.33-02.44 17.03-17.14 11
mins
92 1851 (184)
02.44-02.53 17.14-17.23 9
mins
114 2474 (211)
02.53-03.03 17.23-17.33 10
mins
153 2648 (204)
03.03-03.17 17.33-17.47 14
mins
280 3067 (175)
03.17-03.30 17.47-18.00 13
mins
371 3906
(194) ***
03.30-03.40 18.00-18.10 10
mins
280 3520 (201)
03.40-03.50 18.10-18.20 10
mins
276 3241 (186)
03.50-04.00 18.20-18.30 10
mins
279 3085 (177)
04.00-04.12 18.30-18.42 12
mins
256 2225 (133)
04.12-04.25 18.42-18.55 13
mins
196 1471 (100)
04.25-04.35 18.55-19.05 10
mins
171 2090 (167)
04.35-04.47 19.05-19.17 12
mins 125
2117 (236) ***
No observing past this time as it was beginning to become too light
and
the LM was worse than +5.0.
Total Observing time between 15.50 and 19.17 UT = 3.45 Hrs Teff
Total
Leonids seen in this time = 2852
A full report on the trip and further Leonid information to follow (when I
get the time)