Collaborative Occultation Resources and Archive (CORA)

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

2019-02-17 / 4UC 401-034668 / (276) Adelheid

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Stefan Gajdos O+ CCD M600 SK NTP 20:26:46 20:27:08.59 20:27:19.27 20:27:46 0.12 0.12 10.68 118.5
2 show M. Masek/M. Tylsar O+ CCD M200 CZ NTP 20:26:53 20:27:22.26 20:27:53 0.63
3 show Jiri Kubanek O+ VID M203 CZ GPS++ 20:25:29 20:27:28.83 20:27:34.59 20:29:32 0.64 0.64 5.76 63.9
4 show Jiri Kubanek O+ VID M203 CZ GPS++ 20:25:29 20:27:27.64 20:27:34.68 20:29:32 0.32 0.32 7.04 78.1
5 show Ladislav Cervinka O+ VID M200 CZ GPS++ 20:26:25 20:27:26.07 20:27:34.55 20:28:36 0.32 0.16 8.48 94.1
6 show Peter Lindner O+ VID M305 DE GPS++ 20:24:51 20:27:31.92 20:27:40.88 20:31:30 0.16 0.16 8.96 99.5
7 show Martin Dentel O+ VID M250 DE RAD++ 20:25:25 20:27:38.4 20:27:48.0 20:30:00 0.7 0.7 9.60 106.6
8 show Christian Weber O+ VID M203 DE GPS++ 20:25:47 20:27:38.37 20:27:47.81 20:29:36 0.16 0.32 9.44 104.8
9 show Gerhard Dangl O- VID M254 AT 20:26:33 20:28:50
10 show Michal Rottenborn O- VID M303 CZ 20:25:35 20:29:35
11 show Jan Manek O- CCD M205 CZ 20:25:29 20:29:29
12 show Tomas Janik O- VID M355 CZ 20:25:09 20:30:05
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

12 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#75 : d251d5d4-9ce9-4356-9cb3-760493466710 [db: observed]

Using prediction d251d5d4-9ce9-4356-9cb3-760493466710 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 = 119 x 52 km
a',b' = 59.4, 26.0 km
X0,Y0 = -2490.9, 2.3 km
Mean diameter = 79 km

From 7 chords (VID,CCD)








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: 2019-02-17, 20:26 UT (JD = 2458532.351)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 189None6.319 9°, -4° 2.445975e612557.40.0° size from AO is 104+/-11 km2013-07-23 125.0 +/- 15.0 km 2011-03-28
# 190None6.319 199°, -20° 2.445975e612557.40.0° size from AO is 104+/-12 km2013-07-23 117.0 +/- 15.0 km 2011-03-28
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] : d251d5d4-9ce9-4356-9cb3-760493466710 [observed]

 Occultation Date + Time   : 2019-02-17 at 20:20:47 UT +/- 0.03 min  [1]
 Object Designation        : (276) Adelheid
 Orbit Class               : MBA
 Star Designation          : GDR3 3040622410741268224
 Star Coordinates (ICRF)   : RA = 07 45 49.5781, DE = -09 50 17.544  [2]
 Star Magnitudes           : G = 11.81 mag, RP = 11.1 mag, BP = 12.37 mag
 Object Magnitude          : V = 13.29 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 11.0 sec
 Object Mean Diameter      : 122 km  (src: astorb)
 Speed of the shadow       : 11.1 km/s
 Elongation to Moon & Sun  : 31° (sunlit = 95%), Sun = 139°
 Cross-track uncertainty   : 2.7 mas = 4 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 10.38 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#75

 
 [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)