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2022-06-28 / 4UC 315-217930 / (237) Coelestina

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Michel Boutet O+ VID M300 FR GPS++ 23:27:36 23:30:33.87 23:30:36.75 23:32:58 0.16 0.16 2.88 31.1
2 show J.J. Castellani O+ VID M400 FR GPS++ 23:30:06 23:30:43.32 23:30:44.92 23:31:04 0.16 0.16 1.60 17.3
3 show Olivier Schreurs O- VID M406 BE 23:28:49 23:30:50
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#62 : 05c3addf-806b-4c7d-bb77-9b5507b8f3b3 [db: observed]

Using prediction 05c3addf-806b-4c7d-bb77-9b5507b8f3b3 for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

 Auto-Fit Result:
X0,Y0 = 2192.0, 20.5 km
Circular diameter = 43 km

From 2 chords (VID)








You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

Check SiMDA for size and mass data.

Check Johnston Archive for satellites.

Sky projection (artificial light) for occ. time: 2022-06-28, 23:30 UT (JD = 2459759.479)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 1218None29.175 230°, 30° 2.450875e68884.50.0° NoneNone not scaled 2016-01-04
# 1219None29.176 42°, 14° 2.450875e68884.50.0° NoneNone not scaled 2016-01-04
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] : 05c3addf-806b-4c7d-bb77-9b5507b8f3b3 [observed]

 Occultation Date + Time   : 2022-06-28 at 23:32:47 UT +/- 0.03 min  [1]
 Object Designation        : (237) Coelestina
 Orbit Class               : MBA
 Star Designation          : GDR3 4072185796172180992
 Star Coordinates (ICRF)   : RA = 18 46 58.7669, DE = -27 10 55.604  [2]
 Star Magnitudes           : G = 12.54 mag, RP = 11.79 mag, BP = 13.14 mag
 Object Magnitude          : V = 12.47 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 3.8 sec
 Object Mean Diameter      : 41 km  (src: astorb)
 Speed of the shadow       : 10.8 km/s
 Elongation to Moon & Sun  : 175° (sunlit = 0%), Sun = 175°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#62

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

More Data and Informations
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