Collaborative Occultation Resources and Archive (CORA)


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

2021-02-14 / 4UC 526-048768 / (76) Freia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Miguel Sanchez O+ CCD M200 ES NTP 03:36:56 03:44:34.53 03:44:50.37 03:58:00 0.35 0.35 15.84 166.3
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#78 : 691c8239-9ac6-4955-a80e-50a1d4d474b3 [db: observed]

Using prediction 691c8239-9ac6-4955-a80e-50a1d4d474b3 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2021-02-14, 03:44 UT (JD = 2459259.656)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 442None9.973 140°, 14° 2.44485e614409.70.0° NoneNone not scaled 2012-07-30
# 443None9.973 320°, 17° 2.44485e614409.70.0° NoneNone not scaled 2012-07-30
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] : 691c8239-9ac6-4955-a80e-50a1d4d474b3 [observed]

 Occultation Date + Time   : 2021-02-14 at 03:50:08 UT +/- 0.02 min  [1]
 Object Designation        : (76) Freia
 Orbit Class               : MBA
 Star Designation          : GDR3 0609621060924958080
 Star Coordinates (ICRF)   : RA = 08 42 20.8969, DE = +15 09 33.988  [2]
 Star Magnitudes           : G = 12.31 mag, RP = 11.87 mag, BP = 12.59 mag
 Object Magnitude          : V = 12.36 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 17.5 sec
 Object Mean Diameter      : 184 km  (src: astorb)
 Speed of the shadow       : 10.5 km/s
 Elongation to Moon & Sun  : 135° (sunlit = 6%), Sun = 163°
 Cross-track uncertainty   : 2.7 mas = 3 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#78

 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)