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2024-11-03 / UCAC4 370-169613 / (181) Eucharis

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Andreas Tazreiter O+ CCD T405 AT GPS 17:26:25 17:29:33.5 17:29:37.1 17:34:19 0.4 0.4 3.60 91.4
2 show Peter Nosal O+ VID M250 SK NTP 17:28:27 17:29:43.100 17:29:47.600 17:31:26 0.2 0.3 4.50 114.3
3 show Björn Kattentidt O+ VID M280 DE GPS 17:27:29 17:29:24.382 17:29:28.062 17:31:09 0.386 0.386 3.68 93.5
4 show Peter Delincak O+ VID M400 SK NTP 17:27:31 17:29:40.019 17:29:43.598 17:31:41 0.656 0.656 3.58 90.9
5 show Jiri Polak O+ VID M300 CZ GPS 17:27:27 17:29:26.8 17:29:28.5 17:31:27 0.2 0.2 1.70 43.2
6 show Jiri Kubanek O+ VID M303 CZ GPS 17:27:58 17:29:27.9 17:29:29.1 17:30:58 0.3 0.3 1.20 30.5
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#106 : 143618d0-c359-11ef-5276-41427fff580c [db: observed]
JPL#104 : e97f1da0-854e-11ef-78cd-d9ea7ffffad7 [db: asteroids]
JPL#104 : 59264900-825f-11ef-6618-0b60efb30b84 [db: asteroids]

Using prediction 143618d0-c359-11ef-5276-41427fff580c 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 = 123 x 99 km
a',b' = 61.4, 49.7 km
X0,Y0 = -764.4, 24.2 km
Mean diameter = 111 km

From 6 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).

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Map with groundtrack and observer stations

Occ by (181) Eucharis on 2024-11-03

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↦km
Unavailable
300 km
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Event Details 
 Occultation UUID [and DB] : 143618d0-c359-11ef-5276-41427fff580c [observed]

 Occultation Date + Time   : 2024-11-03 at 17:28:38 UT +/- 0.0 min  [1]
 Object Designation        : (181) Eucharis
 Orbit Class               : MBA
 Star Designation          : GDR3 4183963355148988160
 Star Coordinates (ICRF)   : RA = 19 19 15.4131, DE = -16 03 16.082  [2]
 Star Magnitudes           : G = 14.66 mag, RP = 14.05 mag, BP = 15.11 mag
 Object Magnitude          : V = 14.74 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 4.2 sec
 Object Mean Diameter      : 106.0 km  (src: astorb)
 Speed of the shadow       : 25.4 km/s
 Elongation to Moon & Sun  : 44° (sunlit = 5%), Sun = 67°
 Cross-track uncertainty   : 0.7 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#106

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

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