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2024-09-03 / UCAC4 448-010900 / (679) Pax

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Daniel Blazewicz O+ VID M350 PL GPS 01:20:39 01:21:52.12 01:21:55.23 01:23:12 0.19 0.23 3.11 72.8
2 show Leszek Benedyktowicz O+ VID M200 PL GPS 01:21:21 01:21:52.100 01:21:55.100 01:22:54 0.30 0.30 3.00 70.2
3 show Marcin Filipek O+ VID M250 PL GPS 01:21:34 01:21:52.98 01:21:54.83 01:22:13 0.08 0.18 1.85 43.3
4 show Jiri Kubanek O- VID M303 CZ GPS 01:20:14 01:23:14
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#67 : 46fb7ad0-c354-11ef-5276-c6f596ff0fdb [db: observed]
JPL#65 : 37840cc0-8619-11ef-78cd-feeed797a9ab [db: asteroids]

Using prediction 46fb7ad0-c354-11ef-5276-c6f596ff0fdb 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 = 95 x 18 km
a',b' = 47.7, 8.9 km
X0,Y0 = -147.3, 7.3 km
Mean diameter = 41 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: 2024-09-03, 01:21 UT (JD = 2460556.556)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 305None8.456 42°, -5° 2.443783e616773.60.0° None2011-04-20 not scaled 2011-02-19
# 306None8.456 220°, 32° 2.443783e616773.60.0° preferred, consistent with AO, also agrees with occultation http://www.asteroidoccultation.com/observations/Results/Data2015/20150717_PaxProfileModel306.gif2015-08-13 not scaled 2011-02-19
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] : 46fb7ad0-c354-11ef-5276-c6f596ff0fdb [observed]

 Occultation Date + Time   : 2024-09-03 at 01:24:32 UT +/- 0.0 min  [1]
 Object Designation        : (679) Pax
 Orbit Class               : MBA
 Star Designation          : GDR3 3220702207544395136
 Star Coordinates (ICRF)   : RA = 05 33 37.0597, DE = -00 25 00.729  [2]
 Star Magnitudes           : G = 13.1 mag, RP = 12.18 mag, BP = 13.95 mag
 Object Magnitude          : V = 13.03 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 2.2 sec
 Object Mean Diameter      : 52 km  (src: astorb)
 Speed of the shadow       : 23.4 km/s
 Elongation to Moon & Sun  : 80° (sunlit = 0%), Sun = 79°
 Cross-track uncertainty   : 3.0 mas = 3 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67

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

More Data and Informations
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