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2020-07-31 / 4UC 387-101996 / (2896) Preiss

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Matthieu Conjat O+ CCD M400 FR NTP 20:25:54 20:27:11.17 20:27:12.25 20:28:10 0.62 0.53 1.08 3.9
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#57 : 4b85c608-2fcf-4c14-b7ae-9ccbb9150c64 [db: observed]
JPL#57 : 4ccee333-3621-40ba-8a1c-686bd4c7afb9 [db: observed]

Using prediction 4b85c608-2fcf-4c14-b7ae-9ccbb9150c64 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2020-07-31, 20:26 UT (JD = 2459062.351)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 50271.047.350 258°, -68° 2.45732e61742.40.0° None2020-10-05 not scaled 2019-10-23
# 50281.047.349 75°, -68° 2.45732e61742.40.0° 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] : 4b85c608-2fcf-4c14-b7ae-9ccbb9150c64 [observed]

 Occultation Date + Time   : 2020-07-31 at 20:46:09 UT +/- 0.04 min  [1]
 Object Designation        : (2896) Preiss
 Orbit Class               : MBA
 Star Designation          : GDR3 4104940934755207680
 Star Coordinates (ICRF)   : RA = 18 35 52.1813, DE = -12 36 55.290  [2]
 Star Magnitudes           : G = 11.83 mag, RP = 10.49 mag, BP = 14.04 mag
 Object Magnitude          : V = 14.69 mag
 Estimated Magnitude Drop  : 2.9 mag
 Estimated Max. Duration   : 2.6 sec
 Object Mean Diameter      : 9 km  (src: astorb)
 Speed of the shadow       : 3.6 km/s
 Elongation to Moon & Sun  : 12° (sunlit = 91%), Sun = 148°
 Cross-track uncertainty   : 1.0 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#57

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

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