2025-09-20 / UCAC4 528-001314 / (6513) 1987 UW1
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show
Leszek Benedyktowicz
O+
VID
M200
PL
GPS
21:41:59
21:42:23.660
21:42:23.820
21:42:51
0.030
0.050
0.16
1.3
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 79068730-ddb7-11f0-547e-46d1fcfe8edd for map and profile fit
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Event Details
Occultation UUID [and DB] : 79068730-ddb7-11f0-547e-46d1fcfe8edd [observed]
Occultation Date + Time : 2025-09-20 at 21:43:17 UT +/- 0.01 min [1]
Object Designation : (6513) 1987 UW1
Orbit Class : MBA
Star Designation : GDR3 2781307231890195712
Star Coordinates (ICRF) : RA = 00 42 55.7326, DE = +15 35 35.956 [2]
Star Magnitudes : G = 12.99 mag, RP = 12.41 mag, BP = 13.4 mag
Object Magnitude : V = 16.74 mag
Estimated Magnitude Drop : 3.8 mag
Estimated Max. Duration : 0.8 sec
Object Mean Diameter : 6.4 km (src: astorb)
Speed of the shadow : 8.0 km/s
Elongation to Moon & Sun : 150° (sunlit = 1%), Sun = 160°
Cross-track uncertainty : 1.7 mas = 1 km = 0.26 path-width (1-sig)
RUWE and duplicate source : 1.05 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)