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2021-12-16 / 4UC 445-007250 / (225) Henrietta

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Matthieu Conjat O+ CCD M400 FR NTP 18:41:11 18:42:49.61 18:42:55.46 18:44:15 0.67 0.67 5.85 91.3
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#129 : 3e67d939-4097-4cb4-a715-bc73f8bebdba [db: observed]

Using prediction 3e67d939-4097-4cb4-a715-bc73f8bebdba for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2021-12-16, 18:41 UT (JD = 2459565.278)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 48591.07.356 184°, 54° 2.457278e62287.30.0° 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] : 3e67d939-4097-4cb4-a715-bc73f8bebdba [observed]

 Occultation Date + Time   : 2021-12-16 at 18:39:16 UT +/- 0.01 min  [1]
 Object Designation        : (225) Henrietta
 Orbit Class               : MBA
 Star Designation          : GDR3 3229284690370111872
 Star Coordinates (ICRF)   : RA = 04 45 09.7045, DE = -01 06 51.789  [2]
 Star Magnitudes           : G = 15.51 mag, RP = 15.1 mag, BP = 15.77 mag
 Object Magnitude          : V = 14.66 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 7.7 sec
 Object Mean Diameter      : 121 km  (src: astorb)
 Speed of the shadow       : 15.6 km/s
 Elongation to Moon & Sun  : 25° (sunlit = 95%), Sun = 152°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#129

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

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