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2020-08-06 / 4UC 395-117439 / (336) Lacadiera

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Antoni Selva O+ VID M200 ES GPS++ 21:35:08 21:37:00.37 21:37:08.37 21:39:07 0.32 0.32 8.00 51.2
2 show Matthieu Conjat O+ CCD M400 FR NTP 21:33:59 21:35:48.42 21:35:56.56 21:39:28 0.51 0.53 8.14 52.1
3 show R. Goncalves et al O- VID M508 PT 21:38:20 21:40:20
4 show Joan Rovira O- VID M250 ES 21:33:20 21:40:15
5 show Michele Bigi O- VID M200 IT 21:33:49 21:34:49
6 show Peter Delincak O- CCD M400 SK 21:31:00 21:35:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

6 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#129 : 505e10be-6a69-4219-9e5d-da8e47a5a08c [db: observed]
JPL#129 : 08c0fb91-cb61-443a-9401-94ee2109aed7 [db: observed]

Using prediction 505e10be-6a69-4219-9e5d-da8e47a5a08c 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 ...








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Sky projection (artificial light) for occ. time: 2020-08-06, 21:37 UT (JD = 2459068.401)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 339None13.696 194°, 39° 2.445587e613481.40.0° None2011-05-02 not scaled 2011-04-21
# 340None13.696 37°, 54° 2.445587e613481.40.0° None2011-05-02 not scaled 2011-04-21
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] : 505e10be-6a69-4219-9e5d-da8e47a5a08c [observed]

 Occultation Date + Time   : 2020-08-06 at 21:37:23 UT +/- 0.02 min  [1]
 Object Designation        : (336) Lacadiera
 Orbit Class               : MBA
 Star Designation          : GDR3 4193013641506773632
 Star Coordinates (ICRF)   : RA = 19 43 45.3321, DE = -11 04 05.045  [2]
 Star Magnitudes           : G = 13.25 mag, RP = 12.45 mag, BP = 13.92 mag
 Object Magnitude          : V = 12.45 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 10.8 sec
 Object Mean Diameter      : 69 km  (src: astorb)
 Speed of the shadow       : 6.4 km/s
 Elongation to Moon & Sun  : 58° (sunlit = 90%), Sun = 159°
 Cross-track uncertainty   : 3.0 mas = 2 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 0.97 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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