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2019-08-14 / 4UC 368-180084 / (163) Erigone

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show O. Canales et al O+ VID M180 ES GPS++ 22:37:28 22:37:32.49 22:37:37.77 22:37:45 0.16 0.32 5.28 59.1
2 show Andrea Manna O+ VID M200 CH GPS++ 22:33:29 22:36:25.36 22:36:29.20 22:38:32 0.04 0.04 3.84 43.0
3 show Stefano Sposetti O+ VID M280 CH GPS++ 22:30:00 22:36:24.76 22:36:28.56 22:37:27 0.04 0.04 3.80 42.6
4 show Gregor Krannich O+ CCD M350 DE GPS++ 22:34:31 22:36:12.71 22:36:17.99 22:37:40 0.10 0.10 5.28 59.1
5 show Bernd Gaehrken O+ VID M800 DE GPS 22:33:15 22:36:07.11 22:36:14.15 22:37:30 1 1 7.04 78.8
6 show Bjoern Kattentidt O+ VID M279 DE GPS++ 22:34:04 22:36:05.55 22:36:09.87 22:38:04 0.08 0.08 4.32 48.4
7 show Jiri Kubanek O+ VID M203 CZ GPS++ 22:33:54 22:35:54.31 22:36:01.35 22:37:55 0.32 0.32 7.04 78.8
8 show Jiri Polak O+ VID M303 CZ GPS++ 22:33:58 22:36:00.16 22:36:03.36 22:37:58 0.08 0.08 3.20 35.8
9 show Michal Rottenborn O+ VID M303 CZ GPS++ 22:33:58 22:36:00.23 22:36:03.23 22:37:58 0.02 0.02 3.00 33.6
10 show Libor Smid O+ CCD M355 CZ RAD++ 22:35:00 22:35:59.70 22:36:03.00 22:37:00 0.10 0.10 3.30 37.0
11 show Karel Halir O+ VID M507 CZ GPS++ 22:33:56 22:35:57.88 22:36:02.48 22:59:18 0.04 0.04 4.60 51.5
12 show Jan Manek O+ CCD M200 CZ GPS++ 22:33:50 22:35:49.75 22:35:56.74 22:37:50 0.09 0.09 6.99 78.3
13 show F. Walter et al O+ CCD M350 CZ NTP 22:34:52 22:35:53.25 22:35:58.76 22:36:29 0.10 0.10 5.51 61.7
14 show Jan Zahajsky O+ CCD M355 CZ GPS++ 22:34:31 22:35:52.06 22:35:58.07 22:36:30 0.05 0.05 6.01 67.3
15 show Vaclav Priban O+ VID M300 CZ RAD 22:33:25 22:35:52.85 22:35:58.00 22:36:49 0.32 0.32 5.15 57.7
16 show Marek Zawilski O+ CCD M203 PL NTP 22:33:57 22:35:31.01 22:35:35.19 22:36:31 0.2 0.2 4.18 46.8
17 show Thomas Bellier O- CCD V112 FR 22:34:36 22:40:09
18 show S. Meister et al O- CCD M500 CH 22:35:31 22:37:08
19 show Christian Weber O- VID M203 DE 22:35:28 22:36:50
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

19 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#150 : 20176326-18ed-4275-96c3-d81fa413e503 [db: observed]

Using prediction 20176326-18ed-4275-96c3-d81fa413e503 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 = 81 x 60 km
a',b' = 40.6, 30.1 km
X0,Y0 = 1749.5, 19.9 km
Mean diameter = 70 km

From 16 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: 2019-08-14, 22:37 UT (JD = 2458710.442)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 1399None16.140 191°, -75° 2.444603e614107.40.0° None2017-05-12 not scaled 2017-05-11
# 1783None16.140 359°, -74° 2.444603e614107.40.0° None2017-05-12 not scaled 2017-05-11
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] : 20176326-18ed-4275-96c3-d81fa413e503 [observed]

 Occultation Date + Time   : 2019-08-14 at 22:40:35 UT +/- 0.01 min  [1]
 Object Designation        : (163) Erigone
 Orbit Class               : MBA
 Star Designation          : GDR3 6871265396575273600
 Star Coordinates (ICRF)   : RA = 19 59 43.8634, DE = -16 27 28.014  [2]
 Star Magnitudes           : G = 11.46 mag, RP = 10.54 mag, BP = 12.35 mag
 Object Magnitude          : V = 13.98 mag
 Estimated Magnitude Drop  : 2.6 mag
 Estimated Max. Duration   : 6.5 sec
 Object Mean Diameter      : 73 km  (src: astorb)
 Speed of the shadow       : 11.2 km/s
 Elongation to Moon & Sun  : 18° (sunlit = 100%), Sun = 156°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#150

 
 [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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