2024-09-20 / UCAC4 565-005982 / (74146) 1998 QS84
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Jiri Polak
O-
VID
M300
CZ
GPS
00:43:54
00:47:54
2
show Tomas Janik
O-
CCD
T600
CZ
GPS
00:44:51
00:45:49
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 6b5866a0-ddb5-11f0-547e-44b269772c7c for map and profile fit
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Event Details
Occultation UUID [and DB] : 6b5866a0-ddb5-11f0-547e-44b269772c7c [observed]
Occultation Date + Time : 2024-09-20 at 00:56:56 UT +/- 0.06 min [1]
Object Designation : (74146) 1998 QS84
Orbit Class : MBA
Star Designation : GDR3 0109871864797125120
Star Coordinates (ICRF) : RA = 02 57 54.9232, DE = +22 48 00.900 [2]
Star Magnitudes : G = 13.77 mag, RP = 12.71 mag, BP = 14.91 mag
Object Magnitude : V = 18.9 mag
Estimated Magnitude Drop : 5.1 mag
Estimated Max. Duration : 1.1 sec
Object Mean Diameter : 3.2 km (src: astorb)
Speed of the shadow : 2.9 km/s
Elongation to Moon & Sun : 24° (sunlit = 94%), Sun = 129°
Cross-track uncertainty : 0.4 mas = 0 km = 0.14 path-width (1-sig)
RUWE and duplicate source : 1.14 mas, dup.src = 1 (0:false, 1:true)
Ephemeris Reference : JPL#41
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)
