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2024-12-31 / UCAC4 575-022831 / (2718) Handley

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Martin Gutekunst O+ VID L280 DE GPS 01:29:25 01:29:52.640 01:29:53.499 01:30:25 0.009 0.009 0.86 12.8
2 show Gregor Krannich O+ VID M350 DE GPS 01:28:56 01:29:55.19 01:29:55.45 01:30:56 0.07 0.07 0.26 3.9
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#58 : c6857380-885f-11ef-78cd-eda6eb5d9cbc [db: asteroids]
JPL#58 : a8e41140-8361-11ef-6618-aa53f7fb1c4f [db: asteroids]

Using prediction a8e41140-8361-11ef-6618-aa53f7fb1c4f 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 = -53.4, 24.0 km
Circular diameter = 22 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: 2024-12-31, 01:29 UT (JD = 2460675.562)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 20161.513.098 261°, -53° 2.44819e612485.60.0° None2018-07-19 not scaled 2018-07-18
# 20171.513.098 84°, -52° 2.44819e612485.60.0° None2018-07-19 not scaled 2018-07-18
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] : a8e41140-8361-11ef-6618-aa53f7fb1c4f [asteroids]

 Occultation Date + Time   : 2024-12-31 at 01:33:05 UT +/- 0.0 min  [1]
 Object Designation        : (2718) Handley
 Orbit Class               : MBA
 Star Designation          : GDR3 3426521855030858624
 Star Coordinates (ICRF)   : RA = 06 02 16.8899, DE = +24 59 06.912  [2]
 Star Magnitudes           : G = 12.34 mag, RP = 11.97 mag, BP = 12.55 mag
 Object Magnitude          : V = 16.95 mag
 Estimated Magnitude Drop  : 4.6 mag
 Estimated Max. Duration   : 1.7 sec
 Object Mean Diameter      : 26 km  (src: astorb)
 Speed of the shadow       : 14.9 km/s
 Elongation to Moon & Sun  : 169° (sunlit = 0%), Sun = 171°
 Cross-track uncertainty   : 0.1 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#58

 
 [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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