2019-09-07 / 4UC 420-143945 / (21900) Orus
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show A. Malvache et al
O+
CCD
V112
OM
NTP
21:46:48
21:48:38.7
21:48:42.7
21:51:23
0.5
0.5
4.00
54.8
2
show Alexis Martin
O-
CCD
V112
OM
21:46:23
21:51:23
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):
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Event Details
Occultation UUID [and DB] : d9428d61-a058-49c3-addf-08ddaf2328d4 [observed]
Occultation Date + Time : 2019-09-07 at 21:55:14 UT +/- 0.01 min [1]
Object Designation : (21900) Orus
Orbit Class : JTRO
Star Designation : GDR3 6910956628167056128
Star Coordinates (ICRF) : RA = 21 15 24.7684, DE = -06 04 11.447 [2]
Star Magnitudes : G = 11.67 mag, RP = 11.21 mag, BP = 11.97 mag
Object Magnitude : V = 17.22 mag
Estimated Magnitude Drop : 5.6 mag
Estimated Max. Duration : 2.4 sec
Object Mean Diameter : 33 km (src: astorb)
Speed of the shadow : 13.7 km/s
Elongation to Moon & Sun : 44° (sunlit = 68%), Sun = 153°
Cross-track uncertainty : 1.7 mas = 5 km = 0.16 path-width (1-sig)
RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#37
[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)