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1999-07-02 / TYC 0380-00670-1 / (41) Daphne

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Oscar Canales O+ VIS M200 ES RAD 22:34:22 22:45:01.44 22:45:25.33 22:51:10 0.1 0.1 23.89 112.3
2 show Jean Lecacheux O+ VIS B80 FR GPS+ 22:36:20 22:45:10.62 22:45:43 0.19
3 show Paul Pinel O+ CCD M255 FR PHONE 22:43:35.5 22:44:12.8 37.30 175.3
4 show Maurice Audejean O+ VIS M320 FR NTP 22:43:40 22:44:10.25 1 0.25 30.25 142.2
5 show J.E. Arlot et al O+ VID M1020 FR 22:25:00 22:42:58.42 22:43:35.74 23:30:00 0.08 0.08 37.32 175.4
6 show Gilles Sautot O+ VIS M275 FR PHONE 22:30:00 22:42:55 22:43:28 22:45:00 33.00 155.1
7 show Bernard Christophe O+ CCD FR 22:42:00 22:42:50.22 22:43:26.22 22:43:50 36.00 169.2
8 show Gilles Regheere O+ VIS M200 FR RAD 22:35:00 22:42:45 22:43:10 22:50:00 6 1 25.00 117.5
9 show Philippe Mollet O+ M250 BE 22:42:45 22:43:14 5 5 29.00 136.3
10 show C. Van Den Bossche O+ M300 BE 22:42:45 22:43:14 5 5 29.00 136.3
11 show E. Goffin et al O+ CCD M203 BE 22:40:40 22:42:11.5 22:42:52 22:43:39 1.5 1 40.50 190.3
12 show Pierre Vingerhoets O+ VIS M200 BE RAD++ 22:36:00 22:42:50 23:00:00 2
13 show Jan-Maarten Winkel O+ VIS M310 NL RAD 22:30:00 22:41:58.4 22:42:23.2 22:57:00 0.5 1 24.80 116.6
14 show Ingeborg Blommers O+ VIS L125 NL RAD++ 22:35:00 22:42:05.23 22:42:39.51 22:50:00 0.25 0.25 34.28 161.1
15 show Lex Blommers O+ VIS L266 NL RAD++ 22:35:00 22:42:04.92 22:42:39.38 22:50:00 0.1 0.1 34.46 162.0
16 show Georg Comello O+ VIS M305 NL RAD 22:38:00 22:41:30.0 22:52:00 2
17 show Reinder Bouma O+ VIS M156 NL 22:41:00 22:42:14.0 22:42:30 0.2
18 show P. Dupouy et al O+1 CCD FR 22:43:31 22:44:19.3 22:46:31
19 show P. Dupouy et al O+2 CCD FR 22:43:31 22:44:29.9 22:45:07.5 22:46:31 37.60 176.7
20 show R. Casas et al O- CCD M810 ES
21 show A. Alonso/T. Alonso O- PHM M1550 ES 22:45:39 22:59:14
22 show David Fernandez O- VIS M150 ES 22:43:30 22:50:00
23 show Ignasi Ribas O- VIS M150 ES 22:43:30 22:50:00
24 show Rui Goncalves O- CCD M254 PT
25 show Juan-Ignacio Marin O- VIS M90 ES 22:05:00 23:30:00
26 show Jose-Alberto Berdejo O- VIS M150 ES 22:50:34 23:15:07
27 show Lidia Sanz O- VIS M120 ES 22:48:34 23:14:58
28 show Carles Schnabel O- M210 ES 22:35:00 22:55:00
29 show Alex Roca O- M200 ES 22:30:00 23:00:00
30 show Francois Colas O- VID M1050 FR 22:33:08 22:56:43
31 show Francois Colas O- CCD M1050 FR 22:33:08 22:56:43
32 show Alain Klotz O- M200 FR
33 show Jerome Serant O- ?150 FR 22:43:00 22:50:00
34 show J.F. Courtot O- VIS M205 FR 22:43:00 22:57:00
35 show Harald Marx O- VIS M350 DE 22:34:40 22:56:20
36 show Wieslaw Slotwinski O- M110 PL 22:32:00 23:10:00
37 show Jan Manek O- M110 CZ 22:39:00 22:47:00
38 show Tomas Janik O- M130 CZ 22:39:31 22:46:26
39 show Geert Vandenbulcke O- VIS M250 BE 22:30:00 23:00:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

39 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#152 : 305a68bf-13bf-4373-9f90-dace3dbf7016 [db: observed]

Using prediction 305a68bf-13bf-4373-9f90-dace3dbf7016 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 = 343 x 103 km
a',b' = 171.5, 51.3 km
X0,Y0 = -143.4, 17.3 km
Mean diameter = 188 km

From 14 chords (?,VID,VIS,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: 1999-07-02, 22:45 UT (JD = 2451362.448)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 131None5.988 198°, -32° 2.44477179382e66590.70.0° size from AO is 186+/-27 km2013-07-23 187.0 +/- 20.0 km 2011-03-28
# 17934.05.988 200°, -32° 2.44477179382e66590.70.0° None2019-01-11 187.0 +/- 7.0 km 2018-08-24
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] : 305a68bf-13bf-4373-9f90-dace3dbf7016 [observed]

 Occultation Date + Time   : 1999-07-02 at 22:59:27 UT +/- 0.16 min  [1]
 Object Designation        : (41) Daphne
 Orbit Class               : MBA
 Star Designation          : GDR3 4437855811355064064
 Star Coordinates (ICRF)   : RA = 16 19 22.9416, DE = +05 43 19.583  [2]
 Star Magnitudes           : G = 9.28 mag, RP = 8.91 mag, BP = 9.49 mag
 Object Magnitude          : V = 10.82 mag
 Estimated Magnitude Drop  : 1.8 mag
 Estimated Max. Duration   : 37.1 sec
 Object Mean Diameter      : 174 km  (src: astorb)
 Speed of the shadow       : 4.7 km/s
 Elongation to Moon & Sun  : 86° (sunlit = 85%), Sun = 134°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#152

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations
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