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2023-09-12 / UCAC4 605-044775 / (372) Palma

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Serge Dramonis O+ VID M400 GR GPS 02:27:45 02:28:41.54 02:28:45.42 02:30:00 0.16 0.15 3.88 153.6
2 show Serge Dramonis O+ VID M400 GR GPS 02:27:45 02:28:40.61 02:28:45.39 02:30:00 0.12 0.12 4.78 189.3
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#108 : 9103ebcb-81d3-4189-9406-331619130236 [db: observed]
JPL#113 : bbf95b30-c33c-11ef-5276-ac816f7d2116 [db: observed]

Using prediction 9103ebcb-81d3-4189-9406-331619130236 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:
Circular profile fit was not successful ...








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).

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Sky projection (artificial light) for occ. time: 2023-09-12, 02:28 UT (JD = 2460199.603)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 298None8.582 221°, -47° 2.443889e616310.60.0° None2011-05-02 187.0 +/- 20.0 km 2011-02-18
# 299None8.582 44°, 17° 2.443889e616310.60.0° None2011-05-02 198.0 +/- 26.0 km 2011-02-18
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] : 9103ebcb-81d3-4189-9406-331619130236 [observed]

 Occultation Date + Time   : 2023-09-12 at 02:31:05 UT +/- 0.01 min  [1]
 Object Designation        : (372) Palma
 Orbit Class               : MBA
 Star Designation          : GDR3 0706431242980791680
 Star Coordinates (ICRF)   : RA = 08 44 21.1556, DE = +30 59 28.870  [2]
 Star Magnitudes           : G = 12.47 mag, RP = 11.92 mag, BP = 12.86 mag
 Object Magnitude          : V = 12.61 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 4.8 sec
 Object Mean Diameter      : 188.6 km  (src: astorb)
 Speed of the shadow       : 39.6 km/s
 Elongation to Moon & Sun  : 14° (sunlit = 8%), Sun = 45°
 Cross-track uncertainty   : 8.7 mas = 18 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 4.69 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#108

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

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