2021-07-28 / 4UC 380-117454 / (18054) 1999 SW7
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Jiri Kubanek
O+
CCD
M303
CZ
GPS++
23:03:55
23:05:16.89
23:05:19.00
23:07:21
0.28
0.28
2.11
31.0
2
show Carles Schnabel
O-
VID
M400
ES
23:04:10
23:07:32
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: euraster
Available (probably) matching predictions (click on the link to switch):
Using prediction 28c12e24-72f4-4391-b6fc-e3f62c94f471 for map and profile fit
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Event Details
Occultation UUID [and DB] : 28c12e24-72f4-4391-b6fc-e3f62c94f471 [observed]
Occultation Date + Time : 2021-07-28 at 23:10:14 UT +/- 0.05 min [1]
Object Designation : (18054) 1999 SW7
Orbit Class : JTRO
Star Designation : GDR3 4104489142971257216
Star Coordinates (ICRF) : RA = 18 33 16.7829, DE = -14 10 36.538 [2]
Star Magnitudes : G = 13.88 mag, RP = 12.98 mag, BP = 14.74 mag
Object Magnitude : V = 17.91 mag
Estimated Magnitude Drop : 4.1 mag
Estimated Max. Duration : 1.6 sec
Object Mean Diameter : 24 km (src: astorb)
Speed of the shadow : 14.7 km/s
Elongation to Moon & Sun : 90° (sunlit = 74%), Sun = 151°
Cross-track uncertainty : 3.7 mas = 11 km = 0.47 path-width (1-sig)
RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#46
[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)