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2024-09-29 / UCAC4 294-192676 / (760) Massinga

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Carles Schnabel O+ VID M400 ES GPS 19:39:07 19:41:16.52 19:41:20.76 19:43:17 0.04 0.04 4.24 72.5
2 show Jorge JUAN O+ VID M410 ES GPS 19:39:21 19:41:15.88 19:41:20.52 19:43:08 0.08 0.08 4.64 79.3
3 show Antoni Selva, Carlos Perello O+ VID M500 ES GPS 19:39:48 19:41:17.840 19:41:20.920 19:42:54 0.04 0.04 3.08 52.7
4 show Jordi Marco O- CCD M235 ES NTP 19:39:21 19:43:20
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: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#79 : 018b9270-c357-11ef-5276-a55e7fdf708e [db: observed]
JPL#77 : 59734cb0-8632-11ef-78cd-c4b9fee753e2 [db: asteroids]

Using prediction 018b9270-c357-11ef-5276-a55e7fdf708e 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 = 79 x 48 km
a',b' = 39.5, 23.9 km
X0,Y0 = 1798.7, 6.4 km
Mean diameter = 61 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: 2024-09-29, 19:41 UT (JD = 2460583.320)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 57361.010.761 156°, 47° 2.457319e63264.30.0° None2020-10-05 not scaled 2019-10-23
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] : 018b9270-c357-11ef-5276-a55e7fdf708e [observed]

 Occultation Date + Time   : 2024-09-29 at 19:36:57 UT +/- 0.01 min  [1]
 Object Designation        : (760) Massinga
 Orbit Class               : MBA
 Star Designation          : GDR3 4046849028175183616
 Star Coordinates (ICRF)   : RA = 18 30 30.4175, DE = -31 20 54.126  [2]
 Star Magnitudes           : G = 11.85 mag, RP = 11.9 mag, BP = 11.82 mag
 Object Magnitude          : V = 14.01 mag
 Estimated Magnitude Drop  : 2.3 mag
 Estimated Max. Duration   : 4.2 sec
 Object Mean Diameter      : 71 km  (src: astorb)
 Speed of the shadow       : 17.1 km/s
 Elongation to Moon & Sun  : 122° (sunlit = 8%), Sun = 89°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 0.72 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#79

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

More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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