Collaborative Occultation Resources and Archive (CORA)

Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

2012-12-31 / TYC 2900-01141-1 / (680) Genoveva

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Tomas Janik O+ VIS M254 CZ RAD++ 22:34:33 22:35:56.34 22:36:02.35 22:37:07 0.1 0.1 6.01 98.0
2 show Jiri Kubanek O+ VIS L93 CZ RAD 22:34:30 22:35:50.63 22:35:57.08 22:37:30 6.45 105.1
3 show Wolfgang Rothe O- VID M200 DE 22:33:57 22:38:06
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#67 : c7b9fa5f-0b0e-4ba0-9855-7dcb3de84966 [db: observed]

Using prediction c7b9fa5f-0b0e-4ba0-9855-7dcb3de84966 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 = 122.2, 34.1 km
Circular diameter = 107 km

From 2 chords (VIS)








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: 2012-12-31, 22:34 UT (JD = 2456293.440)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 56821.011.090 242°, 43° 2.457201e6-907.60.0° None2020-10-05 not scaled 2019-10-23
# 56831.011.091 66°, 50° 2.457201e6-907.60.0° None2020-10-05 not scaled 2019-10-23
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] : c7b9fa5f-0b0e-4ba0-9855-7dcb3de84966 [observed]

 Occultation Date + Time   : 2012-12-31 at 22:37:06 UT +/- 0.01 min  [1]
 Object Designation        : (680) Genoveva
 Orbit Class               : MBA
 Star Designation          : GDR3 0188792850938102784
 Star Coordinates (ICRF)   : RA = 05 19 33.2892, DE = +40 22 12.554  [2]
 Star Magnitudes           : G = 9.13 mag, RP = 8.87 mag, BP = 9.27 mag
 Object Magnitude          : V = 15.54 mag
 Estimated Magnitude Drop  : 6.4 mag
 Estimated Max. Duration   : 5.1 sec
 Object Mean Diameter      : 84 km  (src: astorb)
 Speed of the shadow       : 16.3 km/s
 Elongation to Moon & Sun  : 62° (sunlit = 89%), Sun = 155°
 Cross-track uncertainty   : 1.3 mas = 2 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 0.9 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67

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

More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
(If error 404: link not valid which means no data available)

Aladin Sky Atlas
Aladin Lite direct link (has Gaia overlay)