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2021-05-09 / 4UC 483-055024 / (3419) Guth

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Gerhard Dangl O+ VID M254 AT GPS++ 20:42:47 20:44:10.64 20:44:13.48 20:45:48 0.01 0.01 2.84 32.1
2 show Petr Zeleny O+ CCD M254 CZ GPS++ 20:41:27 20:43:52.77 20:43:55.58 20:46:30 0.05 0.05 2.81 31.8
3 show Marcin Filipek O+ CCD M250 PL GPS++ 20:40:00 20:43:41.93 20:43:42.73 20:45:00 0.04 0.04 0.80 9.0
4 show Gregor Krannich O- CCD M350 DE 20:43:31 20:45:53
5 show Jiri Kubanek O- CCD M203 CZ 20:42:16 20:46:21
6 show Marian Urbanik O- CCD M400 SK 20:42:30 20:44:30
7 show Leszek Benedyktowicz O- CCD M203 PL 20:39:00 20:45:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

7 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#59 : 8a45ad71-e3c8-4000-a8ea-f17b34ef65a6 [db: observed]

Using prediction 8a45ad71-e3c8-4000-a8ea-f17b34ef65a6 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 = 34 x 31 km
a',b' = 17.2, 15.4 km
X0,Y0 = 1228.0, 20.3 km
Mean diameter = 33 km

From 3 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: 2021-05-09, 20:44 UT (JD = 2459344.364)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 37331.014.427 84°, -54° 2.451758e67586.40.0° None2019-09-26 not scaled 2019-05-07
# 37341.014.427 217°, -49° 2.451758e67586.40.0° None2019-09-26 not scaled 2019-05-07
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] : 8a45ad71-e3c8-4000-a8ea-f17b34ef65a6 [observed]

 Occultation Date + Time   : 2021-05-09 at 20:45:32 UT +/- 0.02 min  [1]
 Object Designation        : (3419) Guth
 Orbit Class               : MBA
 Star Designation          : GDR3 3717673186897169280
 Star Coordinates (ICRF)   : RA = 13 16 14.7334, DE = +06 30 54.128  [2]
 Star Magnitudes           : G = 11.28 mag, RP = 10.86 mag, BP = 11.54 mag
 Object Magnitude          : V = 16.13 mag
 Estimated Magnitude Drop  : 4.9 mag
 Estimated Max. Duration   : 2.9 sec
 Object Mean Diameter      : 33 km  (src: astorb)
 Speed of the shadow       : 11.3 km/s
 Elongation to Moon & Sun  : 163° (sunlit = 3%), Sun = 143°
 Cross-track uncertainty   : 6.0 mas = 9 km = 0.30 path-width (1-sig)
 RUWE and duplicate source : 1.01 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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