Re: 5919 Obs #28385

From: Björn Gimle via Seesat-l <seesat-l_at_satobs.org>
Date: Wed, 14 Sep 2016 13:57:11 +0200
I forgot to add that a period of about 5.9 is a remote possibility (15 s
exposures 66s apart).

My IOD "observations" (prime:)
28385 04 034B   5919 G 20160911231817500 18 25 2026700+315550 55 N
64
28385 04 034B   5919 G 20160911231924500 18 25 2052800+371681 55 N
64
(secondary:)
28385 04 034B   5919 G 20160911231823500 18 25 2028830+322556 55 N
64
28385 04 034B   5919 G 20160911231829500 18 25 2029233+323208 55 N
64
28385 04 034B   5919 G 20160911231930500 18 25 2055830+375240 55 N
64
28385 04 034B   5919 G 20160911231936500 18 25 2055450+374706 55 N
64
(and maxima:)
28385 04 034B   5919 G 20160911231817500 18 25 2025600+313883 55 M
60
28385 04 034B   5919 G 20160911231823500 18 25 2027930+321240 55 M
60
28385 04 034B   5919 G 20160911231829500 18 25 2030015+324160 55 M
60
28385 04 034B   5919 G 20160911231924500 18 25 2051600+370251 55 M
60
28385 04 034B   5919 G 20160911231930500 18 25 2054150+373211 55 M
60
28385 04 034B   5919 G 20160911231936500 18 25 2056900+380321 55 M
60




--------------------------------------------------------
Björn Gimle, COSPAR 5919
59.2617 N, 18.6169 E, 51 m
Satellite observation formats described:
http://www.satobs.org/position/IODformat.html
---------------------------------------------------------

2016-09-14 13:48 GMT+02:00 Björn Gimle <bjorn.gimle_at_gmail.com>:

> I measured positions of max and min on the two .fits images obtained by
> submitting my .jpg to astrometry.net.
> This gave me also RA and Dec for the points. Then I created IOD files for
> these, adding roughly estimated times,
> and used HeavenSat to display the max/min "Sky/chart - Optical
> measurements".
> Then I interpolated the times from HS predicted track, and the observation
> dots.
> Note that actual prediction/obs times are not so important, since a few
> seconds, or even minutes, does not displace the track so much that the
> angular speed is noticably different.
>
> I obtained 6.49 s for the two primary minima, and the four secondary
> minima (with a spread of +-0.29s); 6.45 s for the maxima (spread +-0.13s
> with one value offset by 0.6s removed)
> The Excel sheet I created is a sort of replacement for my SYNODIC program,
> which is coded with CA-Realizer (16-bit) which I can't run in W10 without
> slight difficulty.
>
> ---------------------------------------------------------
>
> 2016-09-12 15:42 GMT+02:00 Björn Gimle <bjorn.gimle_at_gmail.com>:
>
>> ...
>> Trouble with aiming the camera gave me only two images.
>> ...
>> I may be able to produce/verify the flash period by measuring each max
>> (or min) and combining the two images.
>> ...
>>
>>> --------------------------------------------------------
>>>> Björn Gimle, COSPAR 5919
>>>> 59.2617 N, 18.6169 E, 51 m
>>>> Satellite observation formats described:
>>>> http://www.satobs.org/position/IODformat.html
>>>> ---------------------------------------------------------
>>>>
>>>
>>>
>>
>>
>>
>
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Received on Wed Sep 14 2016 - 06:57:45 UTC

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