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2018-07-26 / TYC 5713-00019-1 / (97) Klotho

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jesus Delgado O+ CCD M235 ES NTP 00:41:51 00:41:59.15 00:42:03.79 00:42:21 0.07 0.07 4.64 64.5
2 show C. Perello/A. Selva O+ VID M500 ES GPS++ 00:39:45 00:41:17.34 00:41:22.10 00:42:44 0.02 0.02 4.76 66.2
3 show Matthieu Conjat O+ CCD M400 FR NTP 00:40:19 00:40:55.82 00:41:00.65 00:42:08 1 1 4.83 67.1
4 show Pietro Baruffetti O+ VID M200 IT GPS++ 00:40:40 00:40:43.60 00:40:48.14 00:40:58 0.16 0.16 4.54 63.1
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

4 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#123 : 3742e7cf-6e84-49d3-8404-f30c2d0d80b1 [db: observed]

Using prediction 3742e7cf-6e84-49d3-8404-f30c2d0d80b1 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 = 91 km

From 4 chords (VID,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: 2018-07-26, 00:41 UT (JD = 2458325.528)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 321None35.251 359°, 30° 2.433224e625101.50.0° None2013-07-24 85.0 +/- 9.0 km 2011-04-21
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] : 3742e7cf-6e84-49d3-8404-f30c2d0d80b1 [observed]

 Occultation Date + Time   : 2018-07-26 at 00:45:50 UT +/- 0.01 min  [1]
 Object Designation        : (97) Klotho
 Orbit Class               : MBA
 Star Designation          : GDR3 4200932770941615104
 Star Coordinates (ICRF)   : RA = 19 16 39.0551, DE = -09 34 20.563  [2]
 Star Magnitudes           : G = 10.64 mag, RP = 9.79 mag, BP = 11.43 mag
 Object Magnitude          : V = 12.32 mag
 Estimated Magnitude Drop  : 1.9 mag
 Estimated Max. Duration   : 6.0 sec
 Object Mean Diameter      : 83 km  (src: astorb)
 Speed of the shadow       : 13.9 km/s
 Elongation to Moon & Sun  : 12° (sunlit = 97%), Sun = 162°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.13 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#123

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

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