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2021-04-04 / 4UC 529-055694 / (350) Ornamenta

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Aniceto Porcel O+ CCD M250 ES NTP 02:50:04 02:58:09.70 02:58:19.03 03:05:59 0.98 0.98 9.33 126.0
2 show Miguel Sanchez O+ CCD M200 ES NTP 02:48:45 02:58:09.76 02:58:18.97 03:05:56 0.24 0.24 9.21 124.3
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#67 : bb4de0d9-5e27-4a05-a9a8-9b0f24ac4d4d [db: observed]
JPL#67 : 31e0e358-c531-4d50-b934-d3b0564e1b86 [db: observed]

Using prediction bb4de0d9-5e27-4a05-a9a8-9b0f24ac4d4d 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:
X0,Y0 = -1125.6, 7.7 km
Circular diameter = 129 km

From 2 chords (CCD)








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: 2021-04-04, 02:58 UT (JD = 2459308.624)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 205None9.180 184°, -29° 2.448596e610712.60.0° 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] : bb4de0d9-5e27-4a05-a9a8-9b0f24ac4d4d [observed]

 Occultation Date + Time   : 2021-04-04 at 02:58:03 UT +/- 0.01 min  [1]
 Object Designation        : (350) Ornamenta
 Orbit Class               : MBA
 Star Designation          : GDR3 1186365835120869632
 Star Coordinates (ICRF)   : RA = 14 49 13.8280, DE = +15 39 13.547  [2]
 Star Magnitudes           : G = 13.92 mag, RP = 13.49 mag, BP = 14.19 mag
 Object Magnitude          : V = 13.86 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 8.8 sec
 Object Mean Diameter      : 118 km  (src: astorb)
 Speed of the shadow       : 13.5 km/s
 Elongation to Moon & Sun  : 71° (sunlit = 53%), Sun = 144°
 Cross-track uncertainty   : 3.0 mas = 5 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 1.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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