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2025-03-27 / UCAC4 578-025254 / (679) Pax

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Peter Nosal O+ VID M250 SK NTP 21:17:49 21:19:13.420 21:19:15.520 21:21:20 0.1 0.1 2.10 44.1
2 show Matej Korec O+ VID T200 SK NTP 21:17:15 21:19:13.1 21:19:14.6 21:21:14 0.2 0.3 1.50 31.5
3 show Peter Nosal, Paula Libic O+ VID M200 SK NTP 21:17:22 21:19:12.900 21:19:15.100 21:21:27 0.2 0.2 2.20 46.2
4 show Marek Harman O+ VID M250 SK NTP 21:17:15 21:19:12.82 21:19:14.92 21:21:15 0.08 0.15 2.10 44.1
5 show Jiri Polak O+ VID M300 CZ GPS 21:17:01 21:19:01.08 21:19:02.88 21:21:01 0.11 0.11 1.80 37.8
6 show Michal Rottenborn O+ VID M254 CZ GPS 21:17:01 21:19:00.90 21:19:02.84 21:21:01 0.13 0.19 1.94 40.7
7 show Jiri Kubanek O+ VID M303 CZ GPS 21:17:29 21:19:01.39 21:19:03.8 21:20:29 0.15 0.3 2.41 50.6
8 show Olivier Schreurs O+ VID M254 BE GPS 21:17:44 21:18:44.4 21:18:45.8 21:19:44 0.2 0.4 1.40 29.4
9 show Jean Bourgeois O+ VID M356 BE GPS 21:17:30 21:18:38.1 21:18:39.9 21:20:00 0.3 0.3 1.80 37.8
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

9 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#65 : 4fdcceb0-8619-11ef-78cd-413fe7e4fd1f [db: asteroids]

Using prediction 4fdcceb0-8619-11ef-78cd-413fe7e4fd1f 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 = 47 km

From 9 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: 2025-03-27, 21:18 UT (JD = 2460762.388)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 305None8.456 42°, -5° 2.443783e616979.40.0° None2011-04-20 not scaled 2011-02-19
# 306None8.456 220°, 32° 2.443783e616979.40.0° 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

Occ by (679) Pax on 2025-03-27

Unavailable
100 km

Event Details
 Occultation UUID [and DB] : 4fdcceb0-8619-11ef-78cd-413fe7e4fd1f [asteroids]

 Occultation Date + Time   : 2025-03-27 at 21:15:18 UT +/- 0.01 min  [1]
 Object Designation        : (679) Pax
 Orbit Class               : MBA
 Star Designation          : GDR3 3426800031471970944
 Star Coordinates (ICRF)   : RA = 06 10 33.3898, DE = +25 31 05.150  [2]
 Star Magnitudes           : G = 14.31 mag, RP = 13.64 mag, BP = 14.82 mag
 Object Magnitude          : V = 14.04 mag
 Estimated Magnitude Drop  : 0.6 mag
 Estimated Max. Duration   : 2.5 sec
 Object Mean Diameter      : 51.5 km  (src: astorb)
 Speed of the shadow       : 21.0 km/s
 Elongation to Moon & Sun  : 107° (sunlit = 4%), Sun = 85°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#65

 
 [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
(If error 404: link not valid which means no data available)

Aladin Sky Atlas
06 10 33.390 +25 31 5.15
FoV: 29.96'
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