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2014-09-17 / 4UC 367-001040 / (791) Ani

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show F. Van Den Abbeel O+ VID M200 BE GPS++ 00:01:02 00:02:51.75 00:02:59.43 00:04:01 0.32 0.32 7.68 80.6
2 show Jan-Maarten Winkel O+ VID M310 NL GPS++ 00:01:12 00:02:39.83 00:02:46.88 00:03:12 0.33 0.33 7.05 74.0
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: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#77 : aeaaef32-5e69-4b1d-8fb2-abd5ffa58e10 [db: observed]

Using prediction aeaaef32-5e69-4b1d-8fb2-abd5ffa58e10 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 = 3347.8, 28.2 km
Circular diameter = 84 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: 2014-09-17, 00:02 UT (JD = 2456917.501)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 23351.511.170 94°, -25° 2.451072e65845.50.0° None2018-07-19 not scaled 2018-07-18
# 23361.511.170 269°, 4° 2.451072e65845.50.0° None2018-07-19 not scaled 2018-07-18
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] : aeaaef32-5e69-4b1d-8fb2-abd5ffa58e10 [observed]

 Occultation Date + Time   : 2014-09-17 at 00:09:12 UT +/- 0.0 min  [1]
 Object Designation        : (791) Ani
 Orbit Class               : MBA
 Star Designation          : GDR3 2371164891940845440
 Star Coordinates (ICRF)   : RA = 00 55 35.9222, DE = -16 39 53.327  [2]
 Star Magnitudes           : G = 12.54 mag, RP = 12.01 mag, BP = 12.91 mag
 Object Magnitude          : V = 13.09 mag
 Estimated Magnitude Drop  : 1.1 mag
 Estimated Max. Duration   : 9.8 sec
 Object Mean Diameter      : 104 km  (src: astorb)
 Speed of the shadow       : 10.5 km/s
 Elongation to Moon & Sun  : 87° (sunlit = 41%), Sun = 156°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#77

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

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