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2007-05-18 / HIP 76293 / (1177) Gonnessia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jiri Polak O+ VIS M205 CZ RAD 22:23:00 22:26:18.55 22:26:22.75 22:29:50 4.20 60.9
2 show Dita Vetrovcova O+ VIS L120 CZ RAD 22:23:00 22:26:19.40 22:26:24.00 22:30:00 4.60 66.7
3 show Libor Smid O+ VID M355 CZ RAD++ 22:26:00 22:26:13.31 22:26:19.44 22:28:00 0.02 0.02 6.13 88.9
4 show Zdenek Brichta O+ VIS L100 CZ RAD 22:26:09.38 22:26:11.85 2.47 35.8
5 show Herbert Raab O+1 VID M200 AT RAD++ 22:24:45 22:26:07.33 22:26:10.89 22:27:20 0.03 0.03 3.56 51.6
6 show Herbert Raab O+2 VID M200 AT RAD++ 22:24:45 22:26:09.25 22:26:14.57 22:27:20 0.03 0.03 5.32 77.1
7 show Michael Parl O- VID M203 DE 22:23:46 22:31:00
8 show Christian Pinter O- VIS M200 AT 22:25:00 22:30:00
9 show Adrian Galad O- CCD M600 SK 22:25:32 22:26:32
10 show Gerhard Dangl O- VID M254 AT 22:22:48 22:29:27
11 show Harald Marx O- VIS M350 DE 22:18:01 22:31:56
12 show F. Hroch/T. Henych O- CCD M620 CZ 22:25:51 22:26:58
13 show Michael Krocil O- VIS M150 CZ 22:22:00 22:30:00
14 show Dalibor Hanzl O- VID M200 CZ 22:24:18 22:29:35
15 show Frantisek Lomoz O- VIS L200 CZ 22:25:00 22:28:45
16 show Jaromir Jindra O- VIS M114 CZ 22:24:00 22:27:00
17 show P. Kusnirak et al O- CCD M650 CZ 22:25:54 22:26:40
18 show Oliver Kloes O- VID M254 DE 22:25:01 22:30:15
19 show Vaclav Priban O- VID M300 CZ 22:16:04 22:30:10
20 show Karel Halir O- VIS B100 CZ 22:25:00 22:28:00
21 show Michal Rottenborn O- VIS M200 CZ 22:24:00 22:29:00
22 show Zdenek Moravec O- VIS L120 CZ 22:25:30 22:27:30
23 show Ladislav Barak O- VIS M150 CZ 22:24:45 22:31:28
24 show Milan Antos O- VIS M150 CZ 22:20:00 22:32:00
25 show Tomas Janik O- VIS M200 CZ 22:25:14 22:29:07
26 show S. Gebhard O- VID M356 DE 22:15:00 22:30:00
27 show Sven Andersson O- VID M280 DE 22:24:00 22:27:30
28 show Peter Enskonatus O- VID M200 DE 22:23:44 22:27:10
29 show Christoph Windisch O- VID L150 DE 22:25:20 22:31:00
30 show Eckehard Rothenberg O- VID M203 DE 22:24:37 22:27:11
31 show Dieter Ewald O- VIS L110 DE 22:19:40 22:34:00
32 show Jan Manek O?1 VID M203 CZ RAD++ 22:23:30 22:26:11.82 22:26:12.06 22:30:00 0.01 0.01 0.24 3.5
33 show Jan Manek O?2 VID M203 CZ RAD++ 22:23:30 22:26:12.41 22:26:12.58 22:30:00 0.01 0.01 0.17 2.5
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

33 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#80 : 35b830d1-1c45-40f0-a7f4-9872304e2d08 [db: observed]

Using prediction 35b830d1-1c45-40f0-a7f4-9872304e2d08 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:
Ellipse profile fit was not successful. Trying circular fit.

Circular diameter = 196 km

From 8 chords (VID,VIS)








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: 2007-05-18, 22:26 UT (JD = 2454239.435)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 44721.042.903 332°, -26° 2.45724e6-3000.60.0° None2020-10-05 not scaled 2019-10-23
# 44731.042.898 172°, -64° 2.45724e6-3000.60.0° None2020-10-05 not scaled 2019-10-23
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] : 35b830d1-1c45-40f0-a7f4-9872304e2d08 [observed]

 Occultation Date + Time   : 2007-05-18 at 22:22:25 UT +/- 0.03 min  [1]
 Object Designation        : (1177) Gonnessia
 Orbit Class               : MBA
 Star Designation          : GDR3 6237974461644480128
 Star Coordinates (ICRF)   : RA = 15 35 06.1969, DE = -25 06 20.399  [2]
 Star Magnitudes           : G = 7.93 mag, RP = 7.55 mag, BP = 8.15 mag
 Object Magnitude          : V = 14.14 mag
 Estimated Magnitude Drop  : 6.2 mag
 Estimated Max. Duration   : 6.4 sec
 Object Mean Diameter      : 92 km  (src: astorb)
 Speed of the shadow       : 14.5 km/s
 Elongation to Moon & Sun  : 151° (sunlit = 6%), Sun = 174°
 Cross-track uncertainty   : 1.8 mas = 3 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 7.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#80

 
 [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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