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2010-11-01 / TYC 2317-01544-1 / (695) Bella

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Joan Rovira O+ VID M200 ES GPS++ 20:35:47 20:41:32.13 20:41:35.05 20:46:45 0.04 0.04 2.92 28.3
2 show J. Vilar et al O+ CCD M200 FR GPS++ 20:34:25 20:40:04.43 20:40:06.83 20:42:20 0.05 0.05 2.40 23.3
3 show Otto Farago O- VID M250 DE 20:38:00 20:42:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#57 : fb47aceb-2158-447a-94c0-133d31127e6c [db: observed]

Using prediction fb47aceb-2158-447a-94c0-133d31127e6c 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 = 1850.6, 34.1 km
Circular diameter = 29 km

From 2 chords (VID,CCD)








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: 2010-11-01, 20:41 UT (JD = 2455502.362)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 378None14.219 87°, -55° 2.444785e610717.40.0° None2011-05-02 not scaled 2011-04-21
# 379None14.219 314°, -56° 2.444785e610717.40.0° 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] : fb47aceb-2158-447a-94c0-133d31127e6c [observed]

 Occultation Date + Time   : 2010-11-01 at 20:39:00 UT +/- 0.02 min  [1]
 Object Designation        : (695) Bella
 Orbit Class               : MBA
 Star Designation          : GDR3 0329365790502598400
 Star Coordinates (ICRF)   : RA = 02 10 21.9083, DE = +34 44 47.434  [2]
 Star Magnitudes           : G = 10.25 mag, RP = 9.6 mag, BP = 10.73 mag
 Object Magnitude          : V = 12.11 mag
 Estimated Magnitude Drop  : 2.0 mag
 Estimated Max. Duration   : 5.0 sec
 Object Mean Diameter      : 48 km  (src: astorb)
 Speed of the shadow       : 9.7 km/s
 Elongation to Moon & Sun  : 118° (sunlit = 24%), Sun = 159°
 Cross-track uncertainty   : 2.0 mas = 1 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.19 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

More Data and Informations
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