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2001-03-15 / HIP 66446 / (423) Diotima

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Raju Vasundhara O+ VIS M203 IN GPS 22:41:59.2 22:42:16.0 0.5 0.5 16.80 168.0
2 show M. Appakutty et al O+ PHM M1020 IN 22:40:57.80 22:41:13.45 0.05 0.10 15.65 156.5
3 show M. Prabhunne/K. Shah O+ VIS M203 IN 22:42:45.09 22:43:01.24 1.4 1.4 16.15 161.5
4 show H. Kulkarni et al O+ VID M356 IN 22:42:48.55 22:43:04.95 0.05 16.40 164.0
5 show Giorgos Akrivas O+ GR 22:51:26 22:51:40 1 1 14.00 140.0
6 show Michel Maillard O+ FR 22:53:30.0
7 show M. Senegas/M. Bonnet O+ VIS M330 FR PHONE 22:30:00 22:53:42.5 22:54:00.0 22:58:00 17.50 175.0
8 show Patrick Martinez O+ VIS M300 FR 22:50:00 22:53:43.3 22:54:00.7 0.2 0.2 17.40 174.0
9 show Pierre-Michel Berge O+ FR 22:54:04
10 show Joel Piraux O+ VIS M203 FR RAD 22:51:57 22:53:24.8 22:53:30.75 22:55:52 0.3 0.1 5.95 59.5
11 show Cedric Leyrat O+ FR 22:53:35.0 22:53:43.4 8.40 84.0
12 show Raymond Poncy O+ CCD M203 FR RAD 22:53:00 22:53:30.5 22:53:43.5 22:55:00 0.5 0.5 13.00 130.0
13 show Philippe Dupouy O+ CCD M200 FR RAD 22:53:25 22:53:53.91 22:54:13.60 22:55:45 0.50 0.50 19.69 196.9
14 show Jean Lecacheux O+ VIS M254 FR GPS 22:48:06 22:53:35.15 22:53:46.85 22:57:18 0.5 0.24 11.70 117.0
15 show Francois Colas O+ VIS M203 FR GPS 22:48:00 22:53:38.20 22:53:45.20 22:58:00 0.3 0.2 7.00 70.0
16 show Bernard Tregon O+ VIS M200 FR PHONE 22:53:00 22:53:53.4 22:54:07.9 0.3 0.3 14.50 145.0
17 show P. Gilabert/O. Ruau O+ VIS M305 FR PHONE 22:38:00 22:53:56.3 22:54:02.2 22:58:30 1 1 5.90 59.0
18 show Arun Shankar O- IN
19 show Luis Rivas O- VIS B80 ES 22:22:00 23:12:00
20 show Mario Fernandez O- VIS L80 ES 22:32:00 22:50:29
21 show David Fernandez O- VIS M258 ES 22:43:30 22:59:40
22 show Carles Schnabel O- M210 ES 22:40:00 22:57:00
23 show R. Casas et al O- CCD M500 ES 22:50:00 22:57:00
24 show Alex Roca O- VIS M200 ES 22:40:00 23:10:00
25 show Jean Caquel O- VIS M305 FR 22:35:00 23:05:00
26 show Gerard Vaudescal O- VIS M180 FR 22:35:00 23:05:00
27 show Jacky Maingueux O- VIS M200 FR 22:35:00 23:05:00
28 show Laurent Brunetto O- VIS M254 FR
29 show William Thuillot O- VID M800 FR 22:21:00 23:15:00
30 show Rene Roy O- VIS M256 FR
31 show Pierre Antonini O- CCD M300 FR 22:52:40 22:54:20
32 show Gerard Faure O- M203 FR
33 show Gerard Gaule O- VIS M406 FR 22:35:00 23:10:00
34 show Emmanuel Sanglard O- VIS M406 FR 22:35:00 23:10:00
35 show Eric Frappa O- VIS B100 FR 22:53:00 22:58:30
36 show Roberto Boccadoro O- IT
37 show Simone Bolzoni O- VIS M200 IT
38 show Stefano Basso O- M200 IT
39 show Lorenzo Comolli O- VIS M200 IT 22:49:00 22:59:00
40 show Eric Barbotin O- M225 FR
41 show Raoul Behrend O- CCD M203 CH
42 show Jerome Serant O- FR
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

42 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#137 : 3181aed7-ef59-46a1-a0d7-5ee9b64ccb83 [db: observed]

Using prediction 3181aed7-ef59-46a1-a0d7-5ee9b64ccb83 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 profile fit was not successful ...








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: 2001-03-15, 22:41 UT (JD = 2451984.445)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 2173.04.775 351°, 4° 2.444826e67158.40.0° None2017-04-03 194.0 +/- 18.0 km 2007-02-27
# 1836None4.775 354°, 0° 2.444826e67158.40.0° None2017-07-11 209.0 +/- 7.0 km 2017-07-11
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] : 3181aed7-ef59-46a1-a0d7-5ee9b64ccb83 [observed]

 Occultation Date + Time   : 2001-03-15 at 22:45:58 UT +/- 0.03 min  [1]
 Object Designation        : (423) Diotima
 Orbit Class               : MBA
 Star Designation          : GDR3 3714412963122802816
 Star Coordinates (ICRF)   : RA = 13 37 15.7594, DE = +04 25 03.444  [2]
 Star Magnitudes           : G = 8.53 mag, RP = 8.14 mag, BP = 8.75 mag
 Object Magnitude          : V = 12.11 mag
 Estimated Magnitude Drop  : 3.6 mag
 Estimated Max. Duration   : 20.9 sec
 Object Mean Diameter      : 209 km  (src: astorb)
 Speed of the shadow       : 10.0 km/s
 Elongation to Moon & Sun  : 55° (sunlit = 59%), Sun = 151°
 Cross-track uncertainty   : 7.0 mas = 10 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 2.54 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#137

 Object is a Gaia mass determination target !

 [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)