2026-07-23 / TYC 6233-00293-1 / (16979) 1999 AO4
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Matthieu Conjat
O-
VID
T400
FR
GPS
22:09:40
::
::
22:10:51
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
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Using prediction 72b14050-d9ab-11f1-43f3-2c82eaffc333 for map and profile fit
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Event Details
Occultation UUID [and DB] : 72b14050-d9ab-11f1-43f3-2c82eaffc333 [observed]
Occultation Date + Time : 2026-07-23 at 22:26:07 UT +/- 0.11 min [1]
Object Designation : (16979) 1999 AO4
Orbit Class : MBA
Star Designation : GDR3 4136034371987652608
Star Coordinates (ICRF) : RA = 17 15 46.3208, DE = -16 28 48.136 [2]
Star Magnitudes : G = 11.41 mag, RP = 10.62 mag, BP = 12.09 mag
Object Magnitude : V = 16.79 mag
Estimated Magnitude Drop : 5.4 mag
Estimated Max. Duration : 1.1 sec
Object Mean Diameter : 6.3 km (src: astorb)
Speed of the shadow : 5.9 km/s
Elongation to Moon & Sun : 24° (sunlit = 73%), Sun = 138°
Cross-track uncertainty : 1.7 mas = 1 km = 0.25 path-width (1-sig)
RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL58
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)
