Jupiter: Oval BA observation challenge 2022 with calculated transit times

[alex_stars]

Hi all,

inspired by a recent post from @John

https://stargazerslounge.com/topic/383630-jupiter-the-oval-ba-and-others/

I was wondering when to observe the Oval BA. I did not find any information in drift speed and location, nor did my usual planetarium software packages (Stellarium, Sky Safari) produce any results. Thus I decided to produce some transit times myself. Here is what I did:

• Went over to Damian Peach's 2021 Jupiter images and got all images showing the GRS and/or the Oval BA
• Measured the GRS and the Oval BA locations throughout 2021 in WinJUPOS
• Calculated central meridian transit times for 2022 for both in UT

If you wonder how accurate the method is, you are invited to compare my calculations to your references. It should all be within minutes.

So I was thinking we could make an observation challenge out of this and whoever likes to participate could post in this thread his/her experience of trying to spot the Oval BA. Would be great if you could include information on the equipment used and the observation time.

Clear skies,

Alex

Here are the central meridian transit times for the Oval BA for January and February 2022 in UT time, the rest of the year (also for the GRS) are attached below

WinJUPOS 12.0.10 (Jupiter), C.M. transit times, 2022/01/19  14:23
Object longitude: L2 = 142.4° -  0.5990°/d * (T - 2021 Aug 16.5)
Time interval: 2022 Jan 19.0 ... 2023 Jan 01.0
Output format: Date UT (C.M. of System 2)
------------------------------------------------------------------------------
2022 Jan 19   08:34 (  49°)   18:29 (  49°)
2022 Jan 20   04:25 (  49°)   14:20 (  48°)
2022 Jan 21   00:16 (  48°)   10:11 (  48°)   20:07 (  48°)
2022 Jan 22   06:02 (  47°)   15:57 (  47°)
2022 Jan 23   01:53 (  47°)   11:48 (  46°)   21:44 (  46°)
2022 Jan 24   07:39 (  46°)   17:35 (  46°)
2022 Jan 25   03:30 (  46°)   13:25 (  45°)   23:21 (  45°)
2022 Jan 26   09:16 (  45°)   19:12 (  45°)
2022 Jan 27   05:07 (  44°)   15:03 (  44°)
2022 Jan 28   00:58 (  44°)   10:54 (  44°)   20:49 (  43°)
2022 Jan 29   06:44 (  43°)   16:40 (  43°)
2022 Jan 30   02:35 (  42°)   12:31 (  42°)   22:26 (  42°)
2022 Jan 31   08:22 (  42°)   18:17 (  42°)
2022 Feb 01   04:13 (  42°)   14:08 (  41°)
2022 Feb 02   00:03 (  41°)   09:59 (  41°)   19:54 (  40°)
2022 Feb 03   05:50 (  40°)   15:45 (  40°)
2022 Feb 04   01:41 (  40°)   11:36 (  39°)   21:32 (  39°)
2022 Feb 05   07:27 (  39°)   17:22 (  38°)
2022 Feb 06   03:18 (  38°)   13:13 (  38°)   23:09 (  38°)
2022 Feb 07   09:04 (  37°)   19:00 (  38°)
2022 Feb 08   04:55 (  37°)   14:51 (  37°)
2022 Feb 09   00:46 (  37°)   10:41 (  36°)   20:37 (  36°)
2022 Feb 10   06:32 (  36°)   16:28 (  36°)
2022 Feb 11   02:23 (  35°)   12:19 (  35°)   22:14 (  35°)
2022 Feb 12   08:10 (  35°)   18:05 (  34°)
2022 Feb 13   04:00 (  34°)   13:56 (  34°)   23:51 (  33°)
2022 Feb 14   09:47 (  34°)   19:42 (  33°)
2022 Feb 15   05:38 (  33°)   15:33 (  33°)
2022 Feb 16   01:29 (  33°)   11:24 (  32°)   21:19 (  32°)
2022 Feb 17   07:15 (  32°)   17:10 (  31°)
2022 Feb 18   03:06 (  31°)   13:01 (  31°)   22:57 (  31°)
2022 Feb 19   08:52 (  30°)   18:48 (  31°)
2022 Feb 20   04:43 (  30°)   14:38 (  29°)
2022 Feb 21   00:34 (  30°)   10:29 (  29°)   20:25 (  29°)
2022 Feb 22   06:20 (  29°)   16:16 (  29°)
2022 Feb 23   02:11 (  28°)   12:06 (  28°)   22:02 (  28°)
2022 Feb 24   07:57 (  27°)   17:53 (  27°)
2022 Feb 25   03:48 (  27°)   13:44 (  27°)   23:39 (  26°)
2022 Feb 26   09:35 (  27°)   19:30 (  26°)
2022 Feb 27   05:25 (  26°)   15:21 (  26°)
2022 Feb 28   01:16 (  25°)   11:12 (  25°)   21:07 (  25°)

The rest of the year is attached as text files here

GRS_CMT_2022.txt

OvalBA_CMT_2022.txt

 

Edited January 19, 2022 by alex_stars
made a challenge out of it