Collaborative Occultation Resources and Archive (CORA)


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

2011-12-30 / 2UC 36955382 / (409) Aspasia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Gerhard Dangl O+ VID M254 AT GPS++ 00:23:39 00:25:38.72 00:25:40.64 00:27:23 0.17 0.17 1.92 24.8
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#124 : 3650239f-794f-4f9b-a22c-b2d9ff5f2bee [db: observed]
JPL#124 : 4df58806-2770-4640-948e-276bdd05a63f [db: observed]

Using prediction 3650239f-794f-4f9b-a22c-b2d9ff5f2bee for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2011-12-30, 00:25 UT (JD = 2455925.517)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 215None9.021 3°, 30° 2.44431e611615.50.0° None2011-04-11 173.0 +/- 17.0 km 2011-03-28
# 7154.09.021 4°, 29° 2.44431e611615.50.0° None2017-06-19 164.0 +/- 3.0 km 2017-06-19
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] : 3650239f-794f-4f9b-a22c-b2d9ff5f2bee [observed]

 Occultation Date + Time   : 2011-12-30 at 00:29:27 UT +/- 0.01 min  [1]
 Object Designation        : (409) Aspasia
 Orbit Class               : MBA
 Star Designation          : GDR3 3347148282420493824
 Star Coordinates (ICRF)   : RA = 05 50 34.0635, DE = +14 49 03.611  [2]
 Star Magnitudes           : G = 12.94 mag, RP = 12.42 mag, BP = 13.28 mag
 Object Magnitude          : V = 11.45 mag
 Estimated Magnitude Drop  : 0.3 mag
 Estimated Max. Duration   : 12.5 sec
 Object Mean Diameter      : 162 km  (src: astorb)
 Speed of the shadow       : 12.9 km/s
 Elongation to Moon & Sun  : 105° (sunlit = 29%), Sun = 167°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.88 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#124

 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)