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2011-01-25 / TYC 1228-00368-1 / (144) Vibilia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jorge Juan O+ VID M406 ES GPS++ 17:31:10 17:33:12.63 17:33:15.13 17:36:11 0.02 0.02 2.50 31.8
2 show E. Frappa et al O+ VID L43 FR GPS++ 17:31:33 17:33:39.42 17:33:50.52 17:36:16 0.08 0.08 11.10 141.0
3 show Chiara Riedo O+ CCD L80 IT RAD 17:33:49 17:34:02.1 17:34:14.7 17:34:30 0.2 0.2 12.60 160.0
4 show Simone Bolzoni O+ VIS M203 IT RAD 17:32:05 17:34:02.52 17:34:15.04 17:36:00 0.3 0.2 12.52 159.0
5 show Stefano Basso O+ VIS M1340 IT RAD 17:29:00 17:34:11.81 17:34:23.72 17:35:00 11.91 151.3
6 show Lorenzo Comolli O+ CCD M310 IT NTP 17:33:00 17:34:07.74 17:34:19.66 17:35:50 0.50 0.40 11.92 151.4
7 show Carlo Gualdoni O+ CCD M250 IT NTP 17:31:02 17:34:08.83 17:34:20.43 17:36:44 0.20 0.20 11.60 147.3
8 show R. Di Luca/R. Cocchi O+ VID M250 IT GPS++ 17:28:00 17:34:21.73 17:34:28.91 17:40:00 0.08 0.08 7.18 91.2
9 show Alberto Ossola O+ CCD M230 CH 17:33:45 17:34:08.74 17:34:19.50 17:35:05 0.1 0.05 10.76 136.7
10 show Marco Nobile O+ CCD M250 CH NTP 17:33:46 17:34:09.00 17:34:19.36 17:35:26 10.36 131.6
11 show Ivo Scheggia O+ CCD L140 CH NTP 17:33:46 17:34:10.09 17:34:20.40 17:40:04 0.5 0.5 10.31 130.9
12 show Y. Malagutti et al O+ VIS M210 CH 17:15:00 17:34:15 17:34:25 17:38:00 10.00 127.0
13 show Andrea Manna O+ VIS M300 CH PHONE 17:26:30 17:34:12.71 17:34:21.18 17:37:10 0.7 0.7 8.47 107.6
14 show Marco Iten O+ VID M250 CH GPS++ 17:14:53 17:34:11.67 17:34:20.09 17:49:21 0.02 0.02 8.42 106.9
15 show Stefano Sposetti O+ VID M400 CH GPS++ 17:32:00 17:34:12.62 17:34:21.18 17:37:00 0.03 0.03 8.56 108.7
16 show B. Gaehrken et al O+ VID M150 IT RAD 17:30:00 17:34:24.80 17:34:36.88 17:36:00 12.08 153.4
17 show Philippe Bernascolle O- VID M280 FR 17:32:57 17:34:58
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

17 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#125 : 079d30ef-385a-48ff-8330-68da2f7408d4 [db: observed]

Using prediction 079d30ef-385a-48ff-8330-68da2f7408d4 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 = 187 x 101 km
a',b' = 93.5, 50.7 km
X0,Y0 = 1123.9, 22.5 km
Mean diameter = 138 km

From 16 chords (VID,VIS,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: 2011-01-25, 17:33 UT (JD = 2455587.231)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 1099None13.825 248°, 56° 2.44459e610997.20.0° NoneNone not scaled 2016-01-04
# 18244.013.825 251°, 63° 2.44459e610997.20.0° None2017-06-19 143.0 +/- 3.0 km 2017-06-16
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] : 079d30ef-385a-48ff-8330-68da2f7408d4 [observed]

 Occultation Date + Time   : 2011-01-25 at 17:33:45 UT +/- 0.01 min  [1]
 Object Designation        : (144) Vibilia
 Orbit Class               : MBA
 Star Designation          : GDR3 0058630637213186304
 Star Coordinates (ICRF)   : RA = 03 10 05.1400, DE = +17 32 05.622  [2]
 Star Magnitudes           : G = 9.65 mag, RP = 9.14 mag, BP = 9.99 mag
 Object Magnitude          : V = 12.35 mag
 Estimated Magnitude Drop  : 2.8 mag
 Estimated Max. Duration   : 11.2 sec
 Object Mean Diameter      : 142 km  (src: astorb)
 Speed of the shadow       : 12.7 km/s
 Elongation to Moon & Sun  : 154° (sunlit = 59%), Sun = 105°
 Cross-track uncertainty   : 2.4 mas = 3 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 4.71 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#125

 Object is a Gaia mass determination target !

 [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)