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2024-11-27 / UCAC4 515-012106 / (350) Ornamenta

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Marcin Filipek O+ VID M250 PL GPS 20:29:25 20:29:33.47 20:29:40.12 20:29:56 0.06 0.06 6.65 87.8
2 show Malcolm Jennings O+ VID M276 GB GPS 20:28:0. 20:30:30.860 20:30:36.140 20:32:0. 0.94 0.94 5.28 69.7
3 show Peter Tickner O+ VID M356 GB GPS 20:28:18 20:30:31.40 20:30:38.23 20:32:35 0.20 0.15 6.83 90.2
4 show Philip Denyer O+ VID M235 GB GPS 20:30:33 20:30:35.58 20:32:49 0.16
5 show Tim Haymes O+ VID M280 GB GPS 20:28:00 20:30:30.81 20:30:38.40 20:33:00 0.1 0.2 7.59 100.2
6 show Simon Kidd O+ VID M350 GB GPS 20:29:30 20:30:27.930 20:30:35.600 20:31:30 0.03 0.02 7.67 101.2
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

6 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#70 : 7e96dbb0-8592-11ef-78cd-846ef3fe3f8b [db: asteroids]
JPL#70 : f06790e0-826d-11ef-6618-4f2f1fbf421c [db: asteroids]

Using prediction 7e96dbb0-8592-11ef-78cd-846ef3fe3f8b 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 = 120 x 107 km
a',b' = 59.9, 53.6 km
X0,Y0 = -1073.9, 24.7 km
Mean diameter = 113 km

From 5 chords (VID)








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: 2024-11-27, 20:29 UT (JD = 2460642.353)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 205None9.180 184°, -29° 2.448596e612046.40.0° None2010-04-15 not scaled 2009-11-05
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] : 7e96dbb0-8592-11ef-78cd-846ef3fe3f8b [asteroids]

 Occultation Date + Time   : 2024-11-27 at 20:23:46 UT +/- 0.01 min  [1]
 Object Designation        : (350) Ornamenta
 Orbit Class               : MBA
 Star Designation          : GDR3 3389074855513403776
 Star Coordinates (ICRF)   : RA = 05 27 00.3946, DE = +12 53 43.037  [2]
 Star Magnitudes           : G = 12.89 mag, RP = 11.93 mag, BP = 13.86 mag
 Object Magnitude          : V = 12.2 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 9.0 sec
 Object Mean Diameter      : 118 km  (src: astorb)
 Speed of the shadow       : 13.2 km/s
 Elongation to Moon & Sun  : 125° (sunlit = 11%), Sun = 161°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#70

 
 [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)