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2022-04-04 / 4UC 586-034123 / (207) Hedda

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Yves Argentin O+ VID M305 FR GPS++ 21:38:13 21:38:54.28 21:38:57.48 21:39:41 0.08 0.08 3.20 62.4
2 show J.J. Castellani O- VID M400 FR 21:38:17 21:39:31
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#77 : f30187f9-4207-4b11-9911-e4f6b6a21fad [db: observed]

Using prediction f30187f9-4207-4b11-9911-e4f6b6a21fad for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2022-04-04, 21:37 UT (JD = 2459674.401)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 47991.030.105 264°, -48° 2.457358e62316.40.0° None2020-10-05 not scaled 2019-10-23
# 48001.030.104 2°, -61° 2.457358e62316.40.0° 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] : f30187f9-4207-4b11-9911-e4f6b6a21fad [observed]

 Occultation Date + Time   : 2022-04-04 at 21:36:01 UT +/- 0.01 min  [1]
 Object Designation        : (207) Hedda
 Orbit Class               : MBA
 Star Designation          : GDR3 3385011167912346368
 Star Coordinates (ICRF)   : RA = 06 45 05.4328, DE = +27 04 45.519  [2]
 Star Magnitudes           : G = 13.88 mag, RP = 13.23 mag, BP = 14.36 mag
 Object Magnitude          : V = 14.93 mag
 Estimated Magnitude Drop  : 1.4 mag
 Estimated Max. Duration   : 3.0 sec
 Object Mean Diameter      : 59 km  (src: astorb)
 Speed of the shadow       : 19.5 km/s
 Elongation to Moon & Sun  : 43° (sunlit = 13%), Sun = 85°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#77

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

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