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2019-03-22 / 4UC 376-077090 / (260) Huberta

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Andrea Manna O+ VID M200 CH GPS++ 03:38:36 03:39:06.03 03:39:18.83 03:41:26 0.64 3.20 12.80 70.4
2 show Stefano Sposetti O+ VID M280 CH GPS++ 03:39:06 03:39:06.90 03:39:24.50 03:41:38 0.64 0.32 17.60 96.8
3 show Bjoern Kattentidt O+ VID M279 DE GPS++ 03:37:51 03:40:02.28 03:40:18.76 03:41:51 0.32 1.12 16.48 90.6
4 show Carles Schnabel O- VID M400 ES 03:35:39 03:39:28
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

4 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#135 : 28493744-11d4-455b-9245-779df9321e09 [db: observed]

Using prediction 28493744-11d4-455b-9245-779df9321e09 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 = 133 x 19 km
a',b' = 66.6, 9.4 km
X0,Y0 = 2520.0, 34.6 km
Mean diameter = 50 km

From 3 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: 2019-03-22, 03:38 UT (JD = 2458564.651)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 578None8.291 206°, -19° 2.450842e67722.70.0° NoneNone not scaled 2013-02-11
# 579None8.291 23°, -28° 2.450842e67722.70.0° NoneNone not scaled 2013-02-11
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] : 28493744-11d4-455b-9245-779df9321e09 [observed]

 Occultation Date + Time   : 2019-03-22 at 03:31:30 UT +/- 0.03 min  [1]
 Object Designation        : (260) Huberta
 Orbit Class               : MBA
 Star Designation          : GDR3 4325679924237233024
 Star Coordinates (ICRF)   : RA = 16 30 11.1600, DE = -14 50 08.021  [2]
 Star Magnitudes           : G = 14.97 mag, RP = 14.13 mag, BP = 15.7 mag
 Object Magnitude          : V = 15.36 mag
 Estimated Magnitude Drop  : 1.0 mag
 Estimated Max. Duration   : 17.2 sec
 Object Mean Diameter      : 95 km  (src: astorb)
 Speed of the shadow       : 5.5 km/s
 Elongation to Moon & Sun  : 52° (sunlit = 98%), Sun = 113°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#135

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

More Data and Informations
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