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2021-11-16 / 4UC 654-047087 / (842) Kerstin

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Simon Kidd O+ CCD M350 UK GPS++ 00:19:43 00:20:39.91 00:20:43.46 00:21:43 0.30 0.30 3.55 24.5
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#64 : 7c7a06d1-a75a-4137-9f98-0b734a06f690 [db: observed]

Using prediction 7c7a06d1-a75a-4137-9f98-0b734a06f690 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2021-11-16, 00:20 UT (JD = 2459534.514)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 35751.018.715 261°, 34° 2.450698e68836.50.0° None2019-09-26 not scaled 2019-05-07
# 35761.018.715 57°, 66° 2.450698e68836.50.0° None2019-09-26 not scaled 2019-05-07
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] : 7c7a06d1-a75a-4137-9f98-0b734a06f690 [observed]

 Occultation Date + Time   : 2021-11-16 at 00:13:43 UT +/- 0.14 min  [1]
 Object Designation        : (842) Kerstin
 Orbit Class               : MBA
 Star Designation          : GDR3 0948591119855907840
 Star Coordinates (ICRF)   : RA = 07 24 12.3885, DE = +40 36 05.719  [2]
 Star Magnitudes           : G = 14.65 mag, RP = 14.03 mag, BP = 15.1 mag
 Object Magnitude          : V = 16.08 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 5.7 sec
 Object Mean Diameter      : 39 km  (src: astorb)
 Speed of the shadow       : 6.9 km/s
 Elongation to Moon & Sun  : 91° (sunlit = 90%), Sun = 125°
 Cross-track uncertainty   : 2.0 mas = 3 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#64

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

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