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2021-11-03 / 4UC 604-041804 / (19665) 1999 RT137

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Simon Kidd O+ CCD M350 UK GPS++ 05:02:00 05:02:59.88 05:03:01.62 05:04:07 0.03 0.03 1.74 12.5
2 show Tim Haymes O- CCD M280 UK 05:01:00 05:05:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#48 : 08253ab4-14af-4472-b2b3-9a38e3d66117 [db: observed]

Using prediction 08253ab4-14af-4472-b2b3-9a38e3d66117 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2021-11-03, 05:01 UT (JD = 2459521.709)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 47701.05.865 207°, -74° 2.457313e62208.70.0° None2020-10-05 not scaled 2019-10-23
# 47711.05.865 62°, -65° 2.457313e62208.70.0° None2020-10-05 not scaled 2019-10-23
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

   
Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 08253ab4-14af-4472-b2b3-9a38e3d66117 [observed]

 Occultation Date + Time   : 2021-11-03 at 05:02:02 UT +/- 0.03 min  [1]
 Object Designation        : (19665) 1999 RT137
 Orbit Class               : MBA
 Star Designation          : GDR3 0879279418669902208
 Star Coordinates (ICRF)   : RA = 07 45 06.0561, DE = +30 46 19.988  [2]
 Star Magnitudes           : G = 12.74 mag, RP = 12.08 mag, BP = 13.25 mag
 Object Magnitude          : V = 18.22 mag
 Estimated Magnitude Drop  : 5.5 mag
 Estimated Max. Duration   : 1.1 sec
 Object Mean Diameter      : 8 km  (src: astorb)
 Speed of the shadow       : 7.2 km/s
 Elongation to Moon & Sun  : 85° (sunlit = 4%), Sun = 108°
 Cross-track uncertainty   : 3.0 mas = 5 km = 0.63 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#48

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

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