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2025-04-05 / UCAC4 674-047631 / (247) Eukrate

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Björn Kattentidt O+ VID M280 DE GPS 19:54:49 19:56:13.466 19:56:15.986 19:56:51 0.362 0.362 2.52 65.5
2 show Jiri Polak O+ VID M303 CZ GPS 19:54:42 19:56:10.34 19:56:15.9 19:57:43 0.14 0.4 5.56 144.6
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#112 : 7ac00af0-8562-11ef-78cd-0fd375fc544e [db: asteroids]

Using prediction 7ac00af0-8562-11ef-78cd-0fd375fc544e 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 = -1579.7, 33.3 km
Circular diameter = 154 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: 2025-04-05, 19:56 UT (JD = 2460771.331)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 1207None12.095 103°, -22° 2.44375e617021.30.0° 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] : 7ac00af0-8562-11ef-78cd-0fd375fc544e [asteroids]

 Occultation Date + Time   : 2025-04-05 at 19:55:14 UT +/- 0.0 min  [1]
 Object Designation        : (247) Eukrate
 Orbit Class               : MBA
 Star Designation          : GDR3 0953945290510408704
 Star Coordinates (ICRF)   : RA = 06 52 00.3529, DE = +44 38 50.749  [2]
 Star Magnitudes           : G = 14.5 mag, RP = 13.83 mag, BP = 15.02 mag
 Object Magnitude          : V = 12.96 mag
 Estimated Magnitude Drop  : 0.2 mag
 Estimated Max. Duration   : 5.2 sec
 Object Mean Diameter      : 134.4 km  (src: astorb)
 Speed of the shadow       : 26.0 km/s
 Elongation to Moon & Sun  : 23° (sunlit = 58%), Sun = 84°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#112

 
 [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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