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2021-12-26 / 4UC 485-020508 / (1165) Imprinetta

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Anna Marciniak O+ CCD M350 PL GPS+ 01:02:31 01:03:31.79 01:03:34.65 01:04:41 0.08 0.08 2.86 46.9
2 show Esdert Edens O+ CCD M250 NL GPS++ 01:01:58 01:04:13.30 01:04:13.70 01:05:58 0.10 0.10 0.40 6.6
3 show Sven Andersson O? CCD M355 DE GPS++ 01:03:01 01:03:41.36 01:03:41.86 01:04:31 0.30 0.30 0.50 8.2
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#68 : a5230675-d0c4-419e-91fc-228bfbee116c [db: observed]
JPL#68 : 635104d8-6e5d-4bb3-b50e-cfd2376079cd [db: observed]

Using prediction a5230675-d0c4-419e-91fc-228bfbee116c 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:
Ellipse profile fit was not successful. Trying circular fit.

Circular diameter = 48 km

From 3 chords (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: 2021-12-26, 01:03 UT (JD = 2459574.544)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 41351.010.809 23°, -63° 2.451063e68511.50.0° None2019-09-26 not scaled 2019-05-07
# 41361.010.809 244°, -49° 2.451063e68511.50.0° None2019-09-26 not scaled 2019-05-07
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] : a5230675-d0c4-419e-91fc-228bfbee116c [observed]

 Occultation Date + Time   : 2021-12-26 at 01:05:43 UT +/- 0.01 min  [1]
 Object Designation        : (1165) Imprinetta
 Orbit Class               : MBA
 Star Designation          : GDR3 3324949589333304576
 Star Coordinates (ICRF)   : RA = 06 19 43.9056, DE = +06 53 54.019  [2]
 Star Magnitudes           : G = 13.19 mag, RP = 12.99 mag, BP = 13.29 mag
 Object Magnitude          : V = 16.17 mag
 Estimated Magnitude Drop  : 3.1 mag
 Estimated Max. Duration   : 3.0 sec
 Object Mean Diameter      : 49 km  (src: astorb)
 Speed of the shadow       : 16.4 km/s
 Elongation to Moon & Sun  : 79° (sunlit = 61%), Sun = 164°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#68

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

More Data and Informations
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