Celestia Forums

Download the latest version of the catalog here: https://celestia.space/forum/viewtopic.php?f=23&t=22203&p=161018#p161018

----------------------------------------------------------------------------------------------------------

The most recently discovered NEOs from NASA's Small Body Database (will update over time to account for new objects).

As far as I know, the AbsMag parameter is not part of the parameters in sts files but only in stc files (star)

Added after 30 minutes 39 seconds:
website: http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html
calculates a value for the diameter of an object knowing its AbsMag (H) and its albedo.
for asteroids the default albedo is 0.15
the result provided by the site is the diameter of the object, so don't forget to divide by 2 to obtain the Radius.

Added after 8 minutes 30 seconds:
2022 FS2 : Radius 0.0035 # H = 28.212 albedo default 0.15 # Neo Apollo
2022 FT2 : Radius 0.007 # H = 26.804 albedo default 0.15 # Neo Apollo
2022 FU2 : Radius 0.725 # H = 21.865 albedo default 0.15 # Neo Amor
2022 FV2 : Radius 0.245 # H = 24.19 albedo default 0.15 # Neo Amor

Update:
Added 2022 FY2-2022 FG3.
Updated sizes of first four NEOs.

Update: Added objects 2022 FM3 to 2022 FG4.

Update: Added Objects 2022 FJ4 to 2022 GZ.

Update: Added 2022 GA1 to 2022 GE2.

Update as of 4-13-2022: Added 2022 GG2 to 2022 GG5. Also includes 2009 VP9, 2003 GV29, and 2009 SY286 due to being in recnet data batches.

Update: Added 2022 GH5 to 2022 GT5 (there haven't been many objects added in the past few days to the Small Body Database).

Updated: Added objects 2022 HA to 2022 HO.
Includes 2017 AE2, data mostly undefined, and main belt asteroids 2010 OJ129 and 2010 TM8, included in previous NEO data batch on the Small Body Data Base.

I realized that you had put the diameter instead of the Radius. The website :
http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html
returns the diameter of the object as a result. To obtain the Radius you must divide by 2. To avoid this additional calculation repeated many times, you can replace the default value of the albedo (0.15) by 0.60 on the site which will give you the radius as a result. (little trick). The albedo in the ssc file should remain 0.15
Below is the list of asteroids with their recalculated radius:

Update: Granted early, this update fixes asteroid radii listed out Gironde and adds 21 new objects.
Current Object count: 212 Asteroids, 210 NEOs, 2 Main Belt.

Update: More objects, new month.
Current object count: 277, 275 NEOs, 1 Main Belt Asteroids.

Update: Just in time for a break on the catalog updates from the Small Body Database.
Number of objects: 308, 306 NEOs, 2 Main Belt Asteroids.

i feel like one day, this catalog will be come so huge, its not a good idea to turn on orbits for asteroids

small video of the NEO asteroids of 2022 (302 ast.) in accelerated time.
This video was made by OBS studio software (free and open source program).
Celestia 1.6.2.2 window recording with LUT5 and a modified Vidiba module.
The video is an avi file H264 1600x816 pixels

Asteroids are defined at Epoch 2459600.5 (2022-Jan-21.0) TDB (by JPL). Their starting positions are grouped together in a concise place in space. Is it because they were only observed at the beginning of the year?

trappistplanets wrote:I feel like one day, this catalog will be come so huge, its not a good idea to turn on orbits for asteroids

It already does, with the 4000 asteroid catalog from Celestia Origin alone, it has been extremely laggy once orbits for asteroids are turned on

I currently have 72000 informed asteroids.
I use vidiba from LUT5 for viewing them with orbits or without orbits. Vidiba allows you to view only certain groups of asteroids of your choice. Initially all asteroids are 'Visible false' and it is checking them in vidiba that allows 'Visible true'. Like that there are always only a small number in office.

DaveBowman2001 wrote:It already does, with the 4000 asteroid catalog from Celestia Origin alone, it has been extremely laggy once orbits for asteroids are turned on

Its worse when you have the ability to generate the entire minor planet catalog in Celestia with just a script.

Gurren Lagann wrote:Its worse when you have the ability to generate the entire minor planet catalog in Celestia with just a script.

wait WOT...
oh god....that is going to be a dead PC

Gurren Lagann wrote:Its worse when you have the ability to generate the entire minor planet catalog in Celestia with just a script.

Like the asteroid catalog you had made that if I turn on orbits it crashes Celestia 1.7.0.