Collaborative Occultation Resources and Archive (CORA)


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

2018-09-26 / 4UC 541-036613 / (95) Arethusa

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Bjoern Kattentidt O+ VID M279 DE GPS++ 00:47:15 00:49:22.92 00:49:29.96 00:51:29 0.32 0.32 7.04 162.6
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#63 : eaa9ee67-919f-473c-b2e9-2e43da686402 [db: observed]

Using prediction eaa9ee67-919f-473c-b2e9-2e43da686402 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2018-09-26, 00:49 UT (JD = 2458387.534)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 294None8.702 149°, 33° 2.444085e614302.50.0° None2011-04-11 147.0 +/- 32.0 km 2011-02-16
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] : eaa9ee67-919f-473c-b2e9-2e43da686402 [observed]

 Occultation Date + Time   : 2018-09-26 at 00:53:14 UT +/- 0.01 min  [1]
 Object Designation        : (95) Arethusa
 Orbit Class               : MBA
 Star Designation          : GDR3 3364378179382838016
 Star Coordinates (ICRF)   : RA = 07 00 54.1054, DE = +18 09 40.203  [2]
 Star Magnitudes           : G = 14.34 mag, RP = 13.66 mag, BP = 14.87 mag
 Object Magnitude          : V = 13.41 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 5.9 sec
 Object Mean Diameter      : 136 km  (src: astorb)
 Speed of the shadow       : 23.1 km/s
 Elongation to Moon & Sun  : 91° (sunlit = 99%), Sun = 78°
 Cross-track uncertainty   : 1.7 mas = 3 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63

 
 [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)