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2022-07-14 / 4UC 549-131905 / (66803) 1999 TD273

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Alex Pratt O+ VID M279 UK GPS++ 22:44:31 22:44:57.17 22:44:57.31 22:45:31 0.02 0.02 0.14 2.4
2 show Jiri Kubanek O- CCD M303 CZ 22:42:12 22:46:08
3 show Jan-Maarten Winkel O- VID M356 NL 22:43:33 22:45:38
4 show William Stewart O- VID M279 UK 22:44:00 22:46:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

4 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#42 : 9cc77f6c-c0e2-410a-8e34-515dc2ca40a8 [db: observed]

Using prediction 9cc77f6c-c0e2-410a-8e34-515dc2ca40a8 for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 9cc77f6c-c0e2-410a-8e34-515dc2ca40a8 [observed]

 Occultation Date + Time   : 2022-07-14 at 22:40:49 UT +/- 0.02 min  [1]
 Object Designation        : (66803) 1999 TD273
 Orbit Class               : MBA
 Star Designation          : GDR3 1814398729354020480
 Star Coordinates (ICRF)   : RA = 20 49 51.4155, DE = +19 43 30.450  [2]
 Star Magnitudes           : G = 10.96 mag, RP = 10.14 mag, BP = 11.7 mag
 Object Magnitude          : V = 17.69 mag
 Estimated Magnitude Drop  : 6.7 mag
 Estimated Max. Duration   : 0.5 sec
 Object Mean Diameter      : 9 km  (src: astorb)
 Speed of the shadow       : 17.1 km/s
 Elongation to Moon & Sun  : 42° (sunlit = 98%), Sun = 135°
 Cross-track uncertainty   : 11.7 mas = 17 km = 2.05 path-width (1-sig)
 RUWE and duplicate source : 1.25 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#42

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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