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2021-01-10 / TYC 2983-00734-1 / (593) Titania

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Mario Billiani O+ CCD V112 AT NTP 22:41:02 22:43:47.04 22:43:54.63 22:46:59 0.14 0.14 7.59 75.1
2 show Jiri Polak O+ CCD M303 CZ GPS++ 22:43:52 22:44:13.28 22:44:20.88 22:46:15 0.40 0.40 7.60 75.2
3 show Jiri Kubanek O+ CCD M203 CZ GPS++ 22:42:16 22:44:18.30 22:44:24.51 22:46:21 0.05 0.05 6.21 61.5
4 show Eberhard Bredner O+ VID M254 DE GPS++ 22:40:00 22:44:37.77 22:44:41.77 22:50:00 0.08 0.08 4.00 39.6
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

4 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#61 : 5f889205-ae3a-45b5-a9f9-02e24d2afbba [db: observed]

Using prediction 5f889205-ae3a-45b5-a9f9-02e24d2afbba 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 = 82 x 56 km
a',b' = 41.1, 27.8 km
X0,Y0 = 733.7, 10.8 km
Mean diameter = 68 km

From 4 chords (VID,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: 2021-01-10, 22:42 UT (JD = 2459225.446)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 56001.09.898 175°, 58° 2.457228e61997.40.0° 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

Event Details 
 Occultation UUID [and DB] : 5f889205-ae3a-45b5-a9f9-02e24d2afbba [observed]

 Occultation Date + Time   : 2021-01-10 at 22:40:24 UT +/- 0.03 min  [1]
 Object Designation        : (593) Titania
 Orbit Class               : MBA
 Star Designation          : GDR3 0719945409117420288
 Star Coordinates (ICRF)   : RA = 08 53 34.6735, DE = +39 14 04.384  [2]
 Star Magnitudes           : G = 11.22 mag, RP = 10.79 mag, BP = 11.5 mag
 Object Magnitude          : V = 12.19 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 7.6 sec
 Object Mean Diameter      : 75 km  (src: astorb)
 Speed of the shadow       : 9.9 km/s
 Elongation to Moon & Sun  : 133° (sunlit = 7%), Sun = 155°
 Cross-track uncertainty   : 2.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#61

 
 [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
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