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2020-07-29 / 4UC 542-003553 / (705) Erminia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jiri Polak O+ CCD M303 CZ GPS++ 22:35:57 22:37:53.65 22:38:01.52 22:39:57 0.50 0.38 7.87 132.2
2 show Jiri Kubanek O+ CCD M203 CZ GPS++ 22:36:00 22:37:55.00 22:38:02.20 22:40:09 2.40 0.80 7.20 121.0
3 show Christian Weber O- CCD M254 DE 22:37:33 22:39:15
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#54 (23-01-08) : e5801c64-b0d9-436a-869e-cfae5decb432 [db: observed]

Using prediction e5801c64-b0d9-436a-869e-cfae5decb432 for map and profile fit

Ellipse and circular profile fits to the timings (chords)

 Auto-Fit Result:
Circular profile fit was not successful ...








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Event Details 
 Occultation UUID [and DB] : e5801c64-b0d9-436a-869e-cfae5decb432 [observed]

 Occultation Date + Time   : 2020-07-29 at 22:36:38 UT +/- 0.02 min  [1]
 Object Designation        : (705) Erminia
 Star Designation          : GDR3 0092688387840592384
 Star Coordinates (ICRF)   : RA = 02 00 34.2212, DE = +18 14 31.340  [2]
 Star Magnitudes           : G = 14.86 mag, RP = 14.29 mag, BP = 15.26 mag
 Object Magnitude          : V = 13.98 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 8.0 sec
 Object Mean Diameter      : 134 km  (src: astorb+H10)
 Speed of the shadow       : 16.8 km/s
 Elongation to Moon & Sun  : 145° (sunlit = 76%), Sun = 93°
 Cross-track uncertainty   : 6.3 mas = 12 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#54 (23-01-08)

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

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