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2022-01-17 / TYC 1890-00146-1 / (207) Hedda

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Anonymous O+ CCD V112 DK NTP 21:07:04 21:09:49.74 21:09:55.10 21:13:01 0.21 0.21 5.36 47.7
2 show Alex Pratt O- VID M279 UK 21:10:55 21:12:08
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 : 1cdc0a9b-7930-40ea-add4-c8830d7fd609 [db: observed]
JPL#77 : 3fe09be8-005e-4779-a362-df93f3e4e132 [db: observed]

Using prediction 1cdc0a9b-7930-40ea-add4-c8830d7fd609 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2022-01-17, 21:08 UT (JD = 2459597.381)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 47991.030.105 264°, -48° 2.457358e62239.40.0° None2020-10-05 not scaled 2019-10-23
# 48001.030.104 2°, -61° 2.457358e62239.40.0° 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] : 1cdc0a9b-7930-40ea-add4-c8830d7fd609 [observed]

 Occultation Date + Time   : 2022-01-17 at 21:09:02 UT +/- 0.02 min  [1]
 Object Designation        : (207) Hedda
 Orbit Class               : MBA
 Star Designation          : GDR3 3433977295482661632
 Star Coordinates (ICRF)   : RA = 06 21 54.0083, DE = +29 31 41.747  [2]
 Star Magnitudes           : G = 11.64 mag, RP = 11.54 mag, BP = 11.69 mag
 Object Magnitude          : V = 13.45 mag
 Estimated Magnitude Drop  : 2.0 mag
 Estimated Max. Duration   : 6.6 sec
 Object Mean Diameter      : 59 km  (src: astorb)
 Speed of the shadow       : 8.9 km/s
 Elongation to Moon & Sun  : 22° (sunlit = 100%), Sun = 156°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.15 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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