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2000-04-07 / PPM 98404 / (791) Ani

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jean Bourgeois O+ VIS M254 BE RAD++ 21:15:40 21:25:23.5 21:25:33.8 21:28:30 0.1 0.1 10.30 77.2
2 show Frank Leiter O+ VIS M400 DE 21:20:00 21:25:52.2 21:26:00.53 21:26:25 0.3 0.2 8.33 62.5
3 show Klaus Spruck O+ VIS M450 DE 21:17:00 21:25:52.22 21:26:00.53 21:26:25 0.2 0.2 8.31 62.3
4 show Geoff Kirby O+ VIS M300 UK 21:20:00 21:24:20.18 21:24:32.46 0.1 0.1 12.28 92.1
5 show Patrick Degrelle O+ VIS M153 FR RAD++ 21:09:20 21:25:08.2 21:25:19.5 21:37:48 0.3 0.1 11.30 84.8
6 show Albert Lheureux O+ VIS L152 BE RAD 21:25:19.68 21:25:26.34 6.66 50.0
7 show Nick Quinn O+ VIS M250 UK 21:16:00 21:24:40.4 21:24:49.6 21:26:00 0.1 0.1 9.20 69.0
8 show Roger Dymock O+ VIS M250 UK 21:13:00 21:24:36.2 21:24:43.9 21:25:00 0.1 0.1 7.70 57.8
9 show Chris Morse O+ VIS M250 UK 21:24:25 21:24:34.5 3 3 9.50 71.2
10 show Adam Stephens O+ VIS L100 UK 21:24:22.6 21:24:31.5 0.1 0.1 8.90 66.8
11 show Anthony Stokes O+ M250 UK 21:15:00 21:30:00
12 show Joel Piraux O- VIS M203 FR 21:22:02 21:27:51
13 show Claudio Cremaschini O- M200 IT 21:00:00 21:30:00
14 show Stefano Basso O- M200 IT 21:10:00 21:40:00
15 show Sandor Busa O- VIS M200 HU 21:20:00 21:45:00
16 show Christophe Demeautis O- M200 FR 21:16:04 21:38:34
17 show J.F. Courtot O- VIS M205 FR 21:05:00 21:35:00
18 show Julius Koza O- M200 SK 21:17:00 21:30:00
19 show Harald Marx O- VIS M350 DE 21:18:32 21:34:12
20 show Gilles Regheere O- VIS M200 FR 21:10:00 21:40:00
21 show H.G. Diederich O- DE 21:11:00 21:30:00
22 show Alfons Diepvens O- BE 21:15:00 21:35:00
23 show Herman Willaert O- BE 21:08:00 21:36:00
24 show Hazel McGee O- VIS M305 UK 21:13:00 21:33:00
25 show Helmut Denzau O- VID M360 DE 20:40:00 21:50:00
26 show Tim Haymes O- VID M305 UK 21:10:00 21:40:00
27 show Chris Hooker O- M200 UK 21:13:00 21:33:00
28 show Ingeborg Blommers O- L125 NL 21:10:00 21:32:00
29 show Lex Blommers O- L266 NL 21:18:00 21:32:00
30 show Guido Kosters O- L200 NL 20:45:00 21:25:00
31 show Danny Pronk O- M455 NL 21:05:00 21:25:00
32 show Merijn Smit O- L80 NL 20:45:00 21:25:00
33 show J. Van Houwelingen O- L100 NL 21:05:00 21:25:00
34 show W. Van Reeven et al O- CCD M200 NL 21:14:00 21:33:00
35 show J. Wiland et al O- VIS M210 PL 21:25:00 21:30:00
36 show Guus Gilein O- M310 NL 21:15:00 21:33:00
37 show Bartczak Przemyslaw O- CCD M400 PL 21:23:30 21:28:30
38 show Adri Gerritsen O- VIS M150 NL 21:18:00 21:32:00
39 show Tomasz Zwolinski O- VIS M150 PL 21:15:00 21:31:00
40 show Dieter Ewald O- VIS M200 DE 21:18:00 21:34:00
41 show Henk Bulder O- VIS M200 NL 21:05:30 21:36:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

41 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#77 : c1e562cd-99e9-41ea-a3e1-e0297b6dff45 [db: observed]

Using prediction c1e562cd-99e9-41ea-a3e1-e0297b6dff45 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 = 110 x 56 km
a',b' = 55.1, 27.8 km
X0,Y0 = 657.5, 25.0 km
Mean diameter = 78 km

From 10 chords (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: 2000-04-07, 21:25 UT (JD = 2451642.392)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 23351.511.170 94°, -25° 2.451072e6570.40.0° None2018-07-19 not scaled 2018-07-18
# 23361.511.170 269°, 4° 2.451072e6570.40.0° 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] : c1e562cd-99e9-41ea-a3e1-e0297b6dff45 [observed]

 Occultation Date + Time   : 2000-04-07 at 21:17:56 UT +/- 0.08 min  [1]
 Object Designation        : (791) Ani
 Orbit Class               : MBA
 Star Designation          : GDR3 0676799061014419328
 Star Coordinates (ICRF)   : RA = 08 09 20.8568, DE = +21 47 06.760  [2]
 Star Magnitudes           : G = 10.12 mag, RP = 9.44 mag, BP = 10.64 mag
 Object Magnitude          : V = 15.7 mag
 Estimated Magnitude Drop  : 5.6 mag
 Estimated Max. Duration   : 13.9 sec
 Object Mean Diameter      : 104 km  (src: astorb)
 Speed of the shadow       : 7.5 km/s
 Elongation to Moon & Sun  : 60° (sunlit = 12%), Sun = 101°
 Cross-track uncertainty   : 1.3 mas = 3 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#77

 
 [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
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