Collaborative Occultation Resources and Archive (CORA)

Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

2021-02-15 / 4UC 542-026508 / (6546) Kaye

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jiri Kubanek O+ VID M203 CZ GPS++ 01:09:13 01:10:22.85 01:10:28.05 01:12:34 0.40 0.40 5.20 23.9
2 show Karel Halir O+ VID M507 CZ GPS++ 01:08:26 01:10:23.74 01:10:29.00 01:12:26 0.19 0.19 5.26 24.2
3 show Tomas Janik O- VID M355 CZ 01:08:14 01:13:06
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#51 : 8cbd795e-8d62-4073-abfd-14716ea45daf [db: observed]

Using prediction 8cbd795e-8d62-4073-abfd-14716ea45daf 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 = 888.0, 12.2 km
Circular diameter = 27 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: 2021-02-15, 01:10 UT (JD = 2459260.549)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 37971.010.014 52°, 75° 2.450837e68423.50.0° None2019-09-26 not scaled 2019-05-07
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] : 8cbd795e-8d62-4073-abfd-14716ea45daf [observed]

 Occultation Date + Time   : 2021-02-15 at 01:31:05 UT +/- 0.09 min  [1]
 Object Designation        : (6546) Kaye
 Orbit Class               : MBA
 Star Designation          : GDR3 3370605504006069504
 Star Coordinates (ICRF)   : RA = 06 24 52.4920, DE = +18 15 34.452  [2]
 Star Magnitudes           : G = 13.81 mag, RP = 13.19 mag, BP = 14.28 mag
 Object Magnitude          : V = 17.14 mag
 Estimated Magnitude Drop  : 3.4 mag
 Estimated Max. Duration   : 3.0 sec
 Object Mean Diameter      : 14 km  (src: astorb)
 Speed of the shadow       : 4.6 km/s
 Elongation to Moon & Sun  : 91° (sunlit = 11%), Sun = 129°
 Cross-track uncertainty   : 4.3 mas = 7 km = 0.54 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#51

 
 [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
Aladin Lite direct link (has Gaia overlay)