2025-11-21 / UCAC4 557-006223 / (77791) 2001 QN49
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Henk de Groot
O-
VID
M350
NL
GPS
18:43:24
::
::
18:45:23
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 beb21c30-ddb8-11f0-547e-d8fec3d799c9 for map and profile fit
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Event Details
Occultation UUID [and DB] : beb21c30-ddb8-11f0-547e-d8fec3d799c9 [observed]
Occultation Date + Time : 2025-11-21 at 18:41:21 UT +/- 0.05 min [1]
Object Designation : (77791) 2001 QN49
Orbit Class : MBA
Star Designation : GDR3 0060742902129742592
Star Coordinates (ICRF) : RA = 03 09 55.8480, DE = +21 23 31.249 [2]
Star Magnitudes : G = 13.79 mag, RP = 13.23 mag, BP = 14.17 mag
Object Magnitude : V = 19.0 mag
Estimated Magnitude Drop : 5.2 mag
Estimated Max. Duration : 0.3 sec
Object Mean Diameter : 4.0 km (src: astorb)
Speed of the shadow : 12.6 km/s
Elongation to Moon & Sun : 155° (sunlit = 2%), Sun = 171°
Cross-track uncertainty : 20.7 mas = 31 km = 7.90 path-width (1-sig)
RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#43
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)
