Collaborative Occultation Resources and Archive (CORA)

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

2011-12-26 / TYC 1314-00863-1 / (156) Xanthippe

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show H. Abramson et al O+ VID M235 US GPS++ 03:18:30 03:20:12.53 03:20:19.33 03:22:36 0.02 0.02 6.80 100.0
2 show Luis Tremosa O+ CCD L130 ES RAD 03:13:10 03:13:27.01 03:13:33.87 03:14:00 6.86 100.8
3 show Carles Schnabel O+ VID M400 ES GPS++ 03:08:08 03:13:28.32 03:13:33.01 03:17:08 0.01 0.01 4.69 68.9
4 show Ramon Naves O+ CCD M300 ES NTP 03:00:08 03:13:27.86 03:13:31.85 03:15:06 3.99 58.7
5 show Carlos Perello O+ VID M127 ES NTP 03:12:36 03:13:29.60 03:13:34.58 03:14:47 2.56 2.56 4.98 73.2
6 show Jordi Lopesino O+ CCD M300 ES NTP 03:07:46 03:13:29.02 03:13:32.49 03:18:46 3.47 51.0
7 show Jorge Juan O+ VID M406 ES GPS++ 03:08:08 03:13:29.03 03:13:33.47 03:17:05 0.02 0.02 4.44 65.3
8 show Hilari Pallares O- VIS M280 ES 03:12:10 03:26:09
9 show Joan Rovira O- VID M200 ES 03:08:57 03:18:02
10 show Oscar Canales O- VID M280 ES 03:12:31 03:14:31
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

10 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#189 : e9c01c1b-fc25-4739-bca1-206d101ff061 [db: observed]

Using prediction e9c01c1b-fc25-4739-bca1-206d101ff061 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 = 316 x 49 km
a',b' = 157.9, 24.7 km
X0,Y0 = 380.6, 38.1 km
Mean diameter = 125 km

From 7 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: 2011-12-26, 03:20 UT (JD = 2455921.639)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 46431.022.116 197°, 9° 2.457319e6-1397.40.0° None2020-10-05 not scaled 2019-10-23
# 46441.022.116 22°, 15° 2.457319e6-1397.40.0° 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] : e9c01c1b-fc25-4739-bca1-206d101ff061 [observed]

 Occultation Date + Time   : 2011-12-26 at 03:18:17 UT +/- 0.01 min  [1]
 Object Designation        : (156) Xanthippe
 Orbit Class               : MBA
 Star Designation          : GDR3 3346006675815203968
 Star Coordinates (ICRF)   : RA = 06 08 11.2204, DE = +15 57 06.532  [2]
 Star Magnitudes           : G = 11.57 mag, RP = 11.28 mag, BP = 11.72 mag
 Object Magnitude          : V = 13.05 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 8.2 sec
 Object Mean Diameter      : 121 km  (src: astorb)
 Speed of the shadow       : 14.7 km/s
 Elongation to Moon & Sun  : 160° (sunlit = 2%), Sun = 172°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#189

 
 [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)