Baton Rouge Astronomical Society Forum

It is currently September 20th, 2018, 4:25 pm

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: 2018 Close Approaches
PostPosted: March 22nd, 2018, 1:20 pm 
Offline

Joined: April 4th, 2012, 5:32 pm
Posts: 17
Hey y'all. I'm going to be taking over the close approach postings for Mr. Chris.

2018 FR3
Thursday, March 22, 2018, 9:58pm CDT
Classification: Apollo
Diameter: 13 m - 29 m
Probable Distance: 1.13 LD


This prediction was derived from 60 observations over a single day. I was unable to find a listing for impact likelihood with the Sentry program.

2018 FF3's Orbit Diagram: https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018%20FF3;old=0;orb=1;cov=0;log=0;cad=0#orb
Minor Planet Electronic Circular: https://minorplanetcenter.net/mpec/K18/K18F86.html


2018 FZ3
Friday, March 23, 2018, 11:21am CDT
Classification: Apollo
Diameter: 8.4 m - 19 m
Probable Distance: 0.50 LD


This data was calculated with 27 observations over a span of one day. I was unable to find a listing for impact likelihood with the Sentry program. There was a candidate with the same number of observations with the Scout program, but the magnitudes did not match.

2018 FZ3's Orbit Diagram: https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018%20FZ3;old=0;orb=1;cov=0;log=0;cad=0#orb
Minor Planet Electronic Circular: https://minorplanetcenter.net/mpec/K18/K18FA5.html



Let me know if you have any suggestions for ways I can improve this.


Top
 Profile  
 
PostPosted: September 8th, 2018, 7:35 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 4253
Location: Baton Rouge, LA
2018 RC
Sunday, 9 September 2018, 7:09am CDT
Classification: Aten
Diameter: 31 to 69 meters
Probable Distance: 224,850 kilometers (0.6 LD)


133 observations (from 3 to 7 September) were used for this prediction. Some of these observations which appear in the Circular came from Mount John Observatory. I could find no impact risk for 2018 RC (please note this was my first time using the new search function at CNEOS).

Atens orbit mostly inside Earth's orbit.

2018 RC's Orbit Diagram: https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018%20RC;old=0;orb=1;cov=0;log=0;cad=1#orb
2017 DP109's Minor Planet Electronic Circular: https://www.minorplanetcenter.net/db_search/show_object?object_id=2018+RC&commit=Show


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group