2023-09-12 / TYC 68-00951-1 / (598) Octavia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Martin Gutekunst	O+	CCD	L280	DE	GPS	00:54:09	00:54:33.288	00:54:39.789	00:55:07	0.003	0.090	6.50	52.6
2	show	Manfred Simon	O+	VID	M203	DE	NTP	00:53:36	00:54:29.35	00:54:36.89	00:55:03	0.02	0.02	7.54	61.1
3	show	Werner Hasubick	O+	VID	M440	DE	GPS	00:54:36	00:00:00.0	00:54:38.313	00:54:57	0.0	0.1
4	show	Karl-Ludwig Bath	O+	CCD	T180	DE	NTP	00:52:00	00:54:10.98	00:54:19.33	00:56:00	0.11	0.10	8.35	67.6
5	show	Andreas Schweizer	O-	VID	L107	CH	GPS	00:53:16			00:55:16

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: sodis

Available (probably) matching predictions (click on the link to switch):

JPL#74 : 3f56cbb0-ddb4-11f0-547e-838d77d367ff [db: observed]

Using prediction 3f56cbb0-ddb4-11f0-547e-838d77d367ff for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: Ellipse profile fit was not successful. Trying circular fit. Circular profile fit was not successful ... Chords to ignore: Fill: Grid: Show (close) miss chords: 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: 2023-09-12, 00:54 UT (JD = 2460199.538)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 5608	1.0	10.891	222°, -8°	2.457401e6	2798.5	0.0°	None	2020-10-05	not scaled	2019-10-23

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

Map with groundtrack and observer stations

Event Details

Occultation UUID [and DB] : 3f56cbb0-ddb4-11f0-547e-838d77d367ff [observed] Occultation Date + Time : 2023-09-12 at 01:00:51 UT +/- 0.0 min [1] Object Designation : (598) Octavia Orbit Class : MBA Star Designation : GDR3 3271632896109453696 Star Coordinates (ICRF) : RA = 03 44 03.4591, DE = +03 35 00.897 [2] Star Magnitudes : G = 8.74 mag, RP = 7.82 mag, BP = 9.64 mag Object Magnitude : V = 13.24 mag Estimated Magnitude Drop : 4.5 mag Estimated Max. Duration : 9.0 sec Object Mean Diameter : 72.3 km (src: astorb) Speed of the shadow : 8.1 km/s Elongation to Moon & Sun : 83° (sunlit = 8%), Sun = 113° Cross-track uncertainty : 1.0 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.12 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#74 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations
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