2025-08-20 / UCAC4 357-190836 / (15810) Arawn
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Tomas Janik
O-
CCD
T600
CZ
GPS
22:06:04
::
::
22:20:29
2
show Wojciech Burzynski
O-
VID
T600
PL
GPS
22:06:15
::
::
22:21:24
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 7d435dc0-8b31-11ef-78cd-4c522ffba1da for map and profile fit
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Event Details
Occultation UUID [and DB] : 7d435dc0-8b31-11ef-78cd-4c522ffba1da [asteroids]
Occultation Date + Time : 2025-08-20 at 22:13:36 UT +/- 4.35 min [1]
Object Designation : (15810) Arawn
Orbit Class : TNO
Star Designation : GDR3 6867492972179088896
Star Coordinates (ICRF) : RA = 20 04 48.1636, DE = -18 41 10.969 [2]
Star Magnitudes : G = 14.31 mag, RP = 13.74 mag, BP = 14.7 mag
Object Magnitude : V = 23.35 mag
Estimated Magnitude Drop : 9.0 mag
Estimated Max. Duration : 4.8 sec
Object Mean Diameter : 99.9 km (src: astorb)
Speed of the shadow : 20.7 km/s
Elongation to Moon & Sun : 174° (sunlit = 6%), Sun = 151°
Cross-track uncertainty : 84.7 mas = 2169 km = 21.72 path-width (1-sig)
RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#11
[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)