The MPC has refined the orbital elements for 2022 QX4 with another day's observations. CNEOS has the close approach occurring on 2022 Aug 29 09:25±<00:01 UT. Distance is still 0.01225 AU. The Condition Code has decreased to 7.
Using the newer elements, ST4v predicts that the NEO will reach 16.2 magnitude on the night of Aug 27-28 from 0200-0400 EDT, then brighten further to 16.1 magnitude by 0500 EDT as it decreases in altitude.
Note that I made an error in the Object Info dialog Notes. The Note should say that the NEO is visible on Aug 28 at 0300 EDT not Aug 27. I mixed thing up with the 'Evening of' designation.
Good hunting,
Phil S.
Update for August 27: The time of predicted close approach per CNEOS is now 2022 Aug 29 09:24±<00:01 UT. The distance is still 0.01225 AU and the Condition Code is still 7.
The path predicted by ST4v is unchanged. The NEO's path still cuts through the north-northwestern portion of earth's umbra ~2300 EDT on Aug 28. Here's the updated Interactive Atlas chart showing the path through the earth's shadow: [attachment=2474]
A file showing the ephemeris for the NEO is attached for an observer at Columbus, Ohio using a 13" Newtonian reflector.
Phil S.
Using the newer elements, ST4v predicts that the NEO will reach 16.2 magnitude on the night of Aug 27-28 from 0200-0400 EDT, then brighten further to 16.1 magnitude by 0500 EDT as it decreases in altitude.
Note that I made an error in the Object Info dialog Notes. The Note should say that the NEO is visible on Aug 28 at 0300 EDT not Aug 27. I mixed thing up with the 'Evening of' designation.
Good hunting,
Phil S.
Update for August 27: The time of predicted close approach per CNEOS is now 2022 Aug 29 09:24±<00:01 UT. The distance is still 0.01225 AU and the Condition Code is still 7.
The path predicted by ST4v is unchanged. The NEO's path still cuts through the north-northwestern portion of earth's umbra ~2300 EDT on Aug 28. Here's the updated Interactive Atlas chart showing the path through the earth's shadow: [attachment=2474]
A file showing the ephemeris for the NEO is attached for an observer at Columbus, Ohio using a 13" Newtonian reflector.
Phil S.