2024-09-20 / UCAC4 419-130151 / (1030) Vitja

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Andreas Schweizer	O+	VID	M250	CH	GPS	19:40:29	19:41:28.700	19:41:33.320	19:42:30	0.400	0.170	4.62	39.3
2	show	Karl-Ludwig Bath	O+	CCD	T180	DE	NTP	19:38:59	19:41:18.80	19:41:25.15	19:43:59	1.42	1.42	6.35	54.0

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: sodis

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

JPL#78 : 6aeb4cf0-ddb5-11f0-547e-2eda6ba9ef6e [db: observed]

Using prediction 6aeb4cf0-ddb5-11f0-547e-2eda6ba9ef6e for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: X0,Y0 = -2686.7, 25.7 km Circular diameter = 55 km From 2 chords (VID,CCD) 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: 2024-09-20, 19:41 UT (JD = 2460574.320)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 3353	1.0	6.336	77°, -59°	2.448895e6	11679.3	0.0°	None	2019-09-26	not scaled	2019-05-07
# 3354	1.0	6.336	264°, -40°	2.448895e6	11679.3	0.0°	None	2019-09-26	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

Map with groundtrack and observer stations

Event Details

Occultation UUID [and DB] : 6aeb4cf0-ddb5-11f0-547e-2eda6ba9ef6e [observed] Occultation Date + Time : 2024-09-20 at 19:49:36 UT +/- 0.01 min [1] Object Designation : (1030) Vitja Orbit Class : MBA Star Designation : GDR3 4208916599735684608 Star Coordinates (ICRF) : RA = 19 37 49.8146, DE = -06 15 58.415 [2] Star Magnitudes : G = 14.58 mag, RP = 13.98 mag, BP = 15.02 mag Object Magnitude : V = 16.04 mag Estimated Magnitude Drop : 1.7 mag Estimated Max. Duration : 7.5 sec Object Mean Diameter : 64.1 km (src: astorb) Speed of the shadow : 8.5 km/s Elongation to Moon & Sun : 100° (sunlit = 89%), Sun = 116° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.95 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia

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