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2025-04-05 / UCAC4 565-047404 / (3582) Cyrano

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Roland BONINSEGNA O+ VID M400 BE GPS 22:57:24 22:58:23.62 22:58:25.06 22:59:22 0.16 0.16 1.44 11.2
2 show Zdenek Moravec, Bohuslav Matous O+ CCD T600 CZ GPS 22:56:12 22:57:09.52 22:57:11.62 22:58:11 0.10 0.10 2.10 16.4
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: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#56 : 999167c0-895a-11ef-78cd-56cafb79e222 [db: asteroids]

Using prediction 999167c0-895a-11ef-78cd-56cafb79e222 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 = 654.8, 17.0 km
Circular diameter = 19 km

From 2 chords (CCD,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).

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Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : 999167c0-895a-11ef-78cd-56cafb79e222 [asteroids]

 Occultation Date + Time   : 2025-04-05 at 23:03:10 UT +/- 0.0 min  [1]
 Object Designation        : (3582) Cyrano
 Orbit Class               : MBA
 Star Designation          : GDR3 3989553412827418496
 Star Coordinates (ICRF)   : RA = 10 47 59.2258, DE = +22 52 02.312  [2]
 Star Magnitudes           : G = 14.9 mag, RP = 14.35 mag, BP = 15.28 mag
 Object Magnitude          : V = 16.75 mag
 Estimated Magnitude Drop  : 2.0 mag
 Estimated Max. Duration   : 2.0 sec
 Object Mean Diameter      : 15.3 km  (src: astorb)
 Speed of the shadow       : 7.8 km/s
 Elongation to Moon & Sun  : 38° (sunlit = 59%), Sun = 136°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.08 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#56

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

More Data and Informations
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