2026-08-22 / UCAC4 454-111404 / (99918) 1998 SQ2
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Deborah Smith
O-
VID
M300
ES
GPS
00:57:42
::
::
00:59:42
2
show Deborah Smith
O-
VID
M250
ES
GPS
00:57:49
::
::
00:59:50
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More 2 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 420cad60-d9ae-11f1-43f3-8aafffff50cc for map and profile fit
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Event Details
Occultation UUID [and DB] : 420cad60-d9ae-11f1-43f3-8aafffff50cc [observed]
Occultation Date + Time : 2026-08-22 at 00:58:03 UT +/- 0.0 min [1]
Object Designation : (99918) 1998 SQ2
Orbit Class : MBA
Star Designation : GDR3 4228400353794569600
Star Coordinates (ICRF) : RA = 20 48 29.7176, DE = +00 38 57.613 [2]
Star Magnitudes : G = 12.31 mag, RP = 11.82 mag, BP = 12.64 mag
Object Magnitude : V = 16.13 mag
Estimated Magnitude Drop : 3.9 mag
Estimated Max. Duration : 0.6 sec
Object Mean Diameter : 3.9 km (src: astorb)
Speed of the shadow : 6.8 km/s
Elongation to Moon & Sun : 59° (sunlit = 68%), Sun = 157°
Cross-track uncertainty : 1.3 mas = 0 km = 0.18 path-width (1-sig)
RUWE and duplicate source : 0.86 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL50
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)
