2026-07-13 / UCAC4 303-142863 / (41018) 1999 UB27
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Deborah Smith
O-
VID
M250
ES
GPS
23:29:45
::
::
23:31:46
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 7baae0e0-d9aa-11f1-43f3-d7436dbe6161 for map and profile fit
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Event Details
Occultation UUID [and DB] : 7baae0e0-d9aa-11f1-43f3-d7436dbe6161 [observed]
Occultation Date + Time : 2026-07-13 at 23:30:53 UT +/- 0.03 min [1]
Object Designation : (41018) 1999 UB27
Orbit Class : MBA
Star Designation : GDR3 4058583909626478848
Star Coordinates (ICRF) : RA = 17 34 27.6084, DE = -29 29 52.311 [2]
Star Magnitudes : G = 13.64 mag, RP = 12.73 mag, BP = 14.48 mag
Object Magnitude : V = 19.69 mag
Estimated Magnitude Drop : 6.1 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 4.0 km (src: astorb)
Speed of the shadow : 10.5 km/s
Elongation to Moon & Sun : 159° (sunlit = 0%), Sun = 152°
Cross-track uncertainty : 0.7 mas = 1 km = 0.30 path-width (1-sig)
RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL39
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)
