2023-04-30 / TYC 191-00661-1 / (38439) 1999 SQ4
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Marcin Filipek
O-
VID
M250
PL
GPS
21:37:43
21:38:43
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More 1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 94504b60-ddb3-11f0-547e-7e3bfb955a54 for map and profile fit
Map with groundtrack and observer stations
Reset Map to default
Event Details
Occultation UUID [and DB] : 94504b60-ddb3-11f0-547e-7e3bfb955a54 [observed]
Occultation Date + Time : 2023-04-30 at 21:34:50 UT +/- 0.0 min [1]
Object Designation : (38439) 1999 SQ4
Orbit Class : MBA
Star Designation : GDR3 3145025815799736064
Star Coordinates (ICRF) : RA = 07 43 55.5239, DE = +07 13 11.116 [2]
Star Magnitudes : G = 9.45 mag, RP = 8.51 mag, BP = 10.35 mag
Object Magnitude : V = 19.39 mag
Estimated Magnitude Drop : 10.0 mag
Estimated Max. Duration : 0.3 sec
Object Mean Diameter : 7.0 km (src: astorb)
Speed of the shadow : 23.5 km/s
Elongation to Moon & Sun : 50° (sunlit = 77%), Sun = 77°
Cross-track uncertainty : 0.3 mas = 0 km = 0.10 path-width (1-sig)
RUWE and duplicate source : 0.93 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#58
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
(If error 404: link not valid which means no data available)
