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2020-03-08 / 4UC 599-043549 / (1356) Nyanza

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Bob Dunford O+ CCD M356 US GPS++ 02:11:54 02:13:57.29 02:14:11.88 02:16:10 0.11 0.11 14.59 55.4
2 show Gerard Vaudescal O+ VID M305 FR GPS++ 01:49:17 01:49:52.35 01:50:05.89 01:50:46 0.06 0.04 13.54 51.5
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#60 : 992ee3cd-4924-4574-8324-fe6e739a051a [db: observed]

Using prediction 992ee3cd-4924-4574-8324-fe6e739a051a 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 = 446.4, 25.1 km
Circular diameter = 64 km

From 2 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: 2020-03-08, 02:13 UT (JD = 2458916.592)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 25971.512.411 327°, -49° 2.451171e67745.60.0° None2018-07-19 not scaled 2018-07-18
# 25981.512.411 149°, -31° 2.451171e67745.60.0° None2018-07-19 not scaled 2018-07-18
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] : 992ee3cd-4924-4574-8324-fe6e739a051a [observed]

 Occultation Date + Time   : 2020-03-08 at 02:12:24 UT +/- 0.05 min  [1]
 Object Designation        : (1356) Nyanza
 Orbit Class               : MBA
 Star Designation          : GDR3 0876814107441175424
 Star Coordinates (ICRF)   : RA = 08 05 47.2069, DE = +29 36 40.683  [2]
 Star Magnitudes           : G = 12.72 mag, RP = 12.11 mag, BP = 13.15 mag
 Object Magnitude          : V = 15.57 mag
 Estimated Magnitude Drop  : 2.9 mag
 Estimated Max. Duration   : 16.9 sec
 Object Mean Diameter      : 65 km  (src: astorb)
 Speed of the shadow       : 3.8 km/s
 Elongation to Moon & Sun  : 28° (sunlit = 96%), Sun = 129°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 2.88 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#60

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

More Data and Informations
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