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2020-09-23 / 4UC 540-042706 / (1436) Salonta

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jiri Polak O+ CCD M303 CZ GPS++ 02:35:33 02:37:32.19 02:37:33.94 02:39:33 0.05 0.05 1.75 45.9
2 show Jiri Kubanek O+ CCD M203 CZ GPS++ 02:35:34 02:37:32.97 02:37:34.65 02:39:37 0.03 0.03 1.68 44.0
3 show Jan Manek O+ CCD M205 CZ GPS++ 02:35:36 02:37:35.47 02:37:36.25 02:39:36 0.04 0.04 0.78 20.4
4 show Leszek Benedyktowicz O+ VID M203 PL GPS++ 02:34:00 02:37:44.48 02:37:45.03 02:40:00 0.14 0.14 0.55 14.4
5 show Marcin Filipek O- VID M250 PL 02:36:52 02:38:45
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

5 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#59 : bf57732f-cc89-4622-a6ec-315c93d2ad3a [db: observed]

Using prediction bf57732f-cc89-4622-a6ec-315c93d2ad3a 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 = 51 x 41 km
a',b' = 25.7, 20.6 km
X0,Y0 = -857.1, 42.1 km
Mean diameter = 46 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: 2020-09-23, 02:37 UT (JD = 2459115.609)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 584None8.870 223°, 18° 2.449867e69248.60.0° NoneNone not scaled 2013-02-11
# 585None8.870 57°, 35° 2.449867e69248.60.0° NoneNone not scaled 2013-02-11
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] : bf57732f-cc89-4622-a6ec-315c93d2ad3a [observed]

 Occultation Date + Time   : 2020-09-23 at 02:40:31 UT +/- 0.01 min  [1]
 Object Designation        : (1436) Salonta
 Orbit Class               : MBA
 Star Designation          : GDR3 3169386801582633856
 Star Coordinates (ICRF)   : RA = 07 36 10.3323, DE = +17 51 49.052  [2]
 Star Magnitudes           : G = 11.06 mag, RP = 10.4 mag, BP = 11.57 mag
 Object Magnitude          : V = 16.59 mag
 Estimated Magnitude Drop  : 5.5 mag
 Estimated Max. Duration   : 2.4 sec
 Object Mean Diameter      : 63 km  (src: astorb)
 Speed of the shadow       : 26.2 km/s
 Elongation to Moon & Sun  : 145° (sunlit = 39%), Sun = 68°
 Cross-track uncertainty   : 2.3 mas = 5 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 1.21 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#59

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

More Data and Informations
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