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2025-01-23 / UCAC4 474-044688 / (304) Olga

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jorge JUAN O+ VID M410 ES GPS 01:11:24 01:14:09.5 01:14:11.51 01:15:59 0.4 0.16 2.01 25.3
2 show Carles Schnabel O- VID M400 ES GPS 01:12:34 01:16:07
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#79 : 7c8d0f80-8572-11ef-78cd-827cfbfb8318 [db: asteroids]

Using prediction 7c8d0f80-8572-11ef-78cd-827cfbfb8318 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2025-01-23, 01:14 UT (JD = 2460698.551)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 50861.018.201 38°, 37° 2.457229e63469.60.0° 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

Occ by (304) Olga on 2025-01-23

Unavailable
300 km

Event Details
 Occultation UUID [and DB] : 7c8d0f80-8572-11ef-78cd-827cfbfb8318 [asteroids]

 Occultation Date + Time   : 2025-01-23 at 01:10:54 UT +/- 0.0 min  [1]
 Object Designation        : (304) Olga
 Orbit Class               : MBA
 Star Designation          : GDR3 3849248307419774592
 Star Coordinates (ICRF)   : RA = 09 57 46.5057, DE = +04 43 32.251  [2]
 Star Magnitudes           : G = 14.56 mag, RP = 14.0 mag, BP = 14.97 mag
 Object Magnitude          : V = 14.57 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 5.4 sec
 Object Mean Diameter      : 67.9 km  (src: astorb)
 Speed of the shadow       : 12.6 km/s
 Elongation to Moon & Sun  : 76° (sunlit = 39%), Sun = 152°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#79

 
 [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
09 57 46.506 +04 43 32.25
FoV: 29.96'
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