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2024-08-02 / TYC 1822-01023-1 / (361) Bononia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Carles Schnabel O+ VID M400 ES GPS 03:57:50 03:58:11.149 03:58:14.359 03:58:40 0.010 0.010 3.21 96.9
2 show Jorge JUAN O+ VID M410 ES GPS 03:57:11 03:58:10.949 03:58:14.528 03:59:13 0.02 0.02 3.58 108.1
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#122 : 7ec11dc0-c350-11ef-5276-7025d7f80991 [db: observed]
JPL#120 : 298b5340-8596-11ef-78cd-06b235fd1dc9 [db: asteroids]

Using prediction 298b5340-8596-11ef-78cd-06b235fd1dc9 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 = 1287.7, 12.1 km
Circular diameter = 124 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: 2024-08-02, 03:58 UT (JD = 2460524.665)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 1173None13.806 115°, 45° 2.446885e613639.70.0° NoneNone not scaled 2016-01-04
# 1174None13.806 294°, 13° 2.446885e613639.70.0° NoneNone not scaled 2016-01-04
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] : 298b5340-8596-11ef-78cd-06b235fd1dc9 [asteroids]

 Occultation Date + Time   : 2024-08-02 at 03:59:36 UT +/- 0.01 min  [1]
 Object Designation        : (361) Bononia
 Orbit Class               : MBA
 Star Designation          : GDR3 0162661685792044544
 Star Coordinates (ICRF)   : RA = 04 07 46.4982, DE = +26 50 30.453  [2]
 Star Magnitudes           : G = 10.78 mag, RP = 10.05 mag, BP = 11.36 mag
 Object Magnitude          : V = 14.61 mag
 Estimated Magnitude Drop  : 3.9 mag
 Estimated Max. Duration   : 4.7 sec
 Object Mean Diameter      : 142 km  (src: astorb)
 Speed of the shadow       : 30.2 km/s
 Elongation to Moon & Sun  : 38° (sunlit = 6%), Sun = 65°
 Cross-track uncertainty   : 2.3 mas = 5 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#120

 
 [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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