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2013-11-29 / 4UC 395-123854 / (41) Daphne

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Carles Schnabel O+ VID M400 ES GPS++ 19:13:28 19:16:28.46 19:16:32.27 19:18:49 0.08 0.08 3.81 128.8
2 show Pietro Baruffetti O+ VID M300 IT GPS++ 19:15:21 19:16:35.38 19:16:41.18 19:18:21 0.35 1.00 5.80 196.0
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#152 : cc21176a-053a-4b0b-9d17-bca29551e808 [db: observed]

Using prediction cc21176a-053a-4b0b-9d17-bca29551e808 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:
X0,Y0 = 208.7, 49.9 km
Circular diameter = 205 km

From 2 chords (VID)








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: 2013-11-29, 19:15 UT (JD = 2456626.302)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 131None5.988 198°, -32° 2.44477179382e611854.50.0° size from AO is 186+/-27 km2013-07-23 187.0 +/- 20.0 km 2011-03-28
# 17934.05.988 200°, -32° 2.44477179382e611854.50.0° 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] : cc21176a-053a-4b0b-9d17-bca29551e808 [observed]

 Occultation Date + Time   : 2013-11-29 at 19:14:34 UT +/- 0.0 min  [1]
 Object Designation        : (41) Daphne
 Orbit Class               : MBA
 Star Designation          : GDR3 6901509284960292096
 Star Coordinates (ICRF)   : RA = 20 34 03.9426, DE = -11 04 42.358  [2]
 Star Magnitudes           : G = 12.92 mag, RP = 12.42 mag, BP = 13.26 mag
 Object Magnitude          : V = 13.25 mag
 Estimated Magnitude Drop  : 0.9 mag
 Estimated Max. Duration   : 5.2 sec
 Object Mean Diameter      : 174 km  (src: astorb)
 Speed of the shadow       : 33.8 km/s
 Elongation to Moon & Sun  : 103° (sunlit = 13%), Sun = 61°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.99 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

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