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2020-03-23 / 4UC 566-012493 / (486) Cremona

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Michal Rottenborn O+ VID M303 CZ GPS++ 19:42:28 19:44:30.89 19:44:31.65 19:46:28 0.06 0.06 0.76 18.5
2 show Olivier Schreurs O+ VID M280 BE GPS++ 19:43:07 19:44:14.18 19:44:14.74 19:45:17 0.02 0.02 0.56 13.7
3 show Petr Zeleny O- CCD M254 CZ 19:42:30 19:46:45
4 show Jiri Kubanek O- VID M203 CZ 19:42:27 19:46:31
5 show Miroslav Polacek O- CCD M152 CZ 19:43:06 19:47:05
6 show Karel Halir O- VID M507 CZ 19:42:29 19:46:29
7 show Roland Boninsegna O- VID M400 BE 19:42:23 19:45:20
8 show Peter Birtwhistle O- CCD M405 UK 19:43:47 19:44:07
9 show Philip Denyer O- VID M235 UK 19:42:02 19:45:58
10 show John Talbot O- VID M303 UK 19:41:55 19:45:55
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

10 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#56 : d75da6af-5e50-4faa-839d-048874a36916 [db: observed]

Using prediction d75da6af-5e50-4faa-839d-048874a36916 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 = 649.9, -2.5 km
Circular diameter = 40 km

From 2 chords (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).

Check SiMDA for size and mass data.

Check Johnston Archive for satellites.

Sky projection (artificial light) for occ. time: 2020-03-23, 19:44 UT (JD = 2458932.322)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 359None65.151 227°, 59° 2.448721e610211.30.0° None2011-05-02 not scaled 2011-04-21
# 360None65.151 31°, 30° 2.448721e610211.30.0° None2011-05-02 not scaled 2011-04-21
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