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2010-09-01 / 2UC 39795518 / (37) Fides

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jean Lecacheux O+ VID M212 FR GPS++ 01:38:31 01:43:34.29 01:43:40.70 01:49:00 0.01 0.01 6.41 110.3
2 show Oliver Kloes O+ VID M254 DE GPS++ 01:38:15 01:44:07.18 01:44:14.06 01:54:00 0.03 0.03 6.88 118.3
3 show Wolfgang Rothe O+ VID M200 DE GPS++ 01:41:44 01:44:31.42 01:44:38.30 01:47:06 0.04 0.16 6.88 118.3
4 show G. Wortmann et al O+ VID M500 DE GPS++ 01:42:04 01:44:31.52 01:44:38.34 01:47:01 0.01 0.02 6.82 117.3
5 show Jean Vilar O- CCD M200 FR 01:40:17 01:48:18
6 show Tomas Janik O- VIS M254 CZ 01:44:05 01:45:15
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#147 : 94c3c8d6-81e7-4fa1-a959-710c4d79aa5a [db: observed]

Using prediction 94c3c8d6-81e7-4fa1-a959-710c4d79aa5a 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:
Size = 119 x 51 km
a',b' = 59.6, 25.3 km
X0,Y0 = 1145.9, 37.8 km
Mean diameter = 78 km

From 4 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.

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Sky projection (artificial light) for occ. time: 2010-09-01, 01:43 UT (JD = 2455440.572)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 311None7.333 270°, 19° 2.443161e612279.60.0° None2013-07-24 118.0 +/- 10.0 km 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] : 94c3c8d6-81e7-4fa1-a959-710c4d79aa5a [observed]

 Occultation Date + Time   : 2010-09-01 at 01:46:02 UT +/- 0.01 min  [1]
 Object Designation        : (37) Fides
 Orbit Class               : MBA
 Star Designation          : GDR3 0053565358943935744
 Star Coordinates (ICRF)   : RA = 04 06 18.4661, DE = +22 41 16.847  [2]
 Star Magnitudes           : G = 11.01 mag, RP = 9.99 mag, BP = 12.1 mag
 Object Magnitude          : V = 11.64 mag
 Estimated Magnitude Drop  : 1.1 mag
 Estimated Max. Duration   : 6.3 sec
 Object Mean Diameter      : 108 km  (src: astorb)
 Speed of the shadow       : 17.2 km/s
 Elongation to Moon & Sun  : 4° (sunlit = 57%), Sun = 95°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.24 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#147

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

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