Cora»Occultation

2023-04-08 / UCAC4 402-083153 / (676) Melitta

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Mavroudis Eleftheriou, Michail Dogramatzidis, +1	O+	CCD	M356	GR	GPS	01:38:16	01:40:31.9	01:40:38.2	01:42:36	0.3	0.3	6.30	92.0
2	show	Mavroudis Eleftheriou, Michail Dogramatzidis, +1	O+	CCD	M356	GR	GPS	01:38:16	01:40:31.9	01:40:36.3	01:42:36	0.3	0.3	4.40	64.2
3	show	Ferran Casarramona	O-	VID	M200	ES	GPS	01:37:02			01:40:01

UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: sodis

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

JPL#81 : 8e5e8910-ddb3-11f0-547e-732b4eff9c98 [db: observed]

Using prediction 8e5e8910-ddb3-11f0-547e-732b4eff9c98 for map and profile fit

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Ellipse and circular profile fits to the timings (chords)

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Sky projection (artificial light) for occ. time: 2023-04-08, 01:39 UT (JD = 2460042.569)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 5680	1.0	16.741	64°, -74°	2.457324e6	2718.6	0.0°	None	2020-10-05	not scaled	2019-10-23
# 5681	1.0	16.741	236°, -26°	2.457324e6	2718.6	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

Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 8e5e8910-ddb3-11f0-547e-732b4eff9c98 [observed] Occultation Date + Time : 2023-04-08 at 01:41:38 UT +/- 0.0 min [1] Object Designation : (676) Melitta Orbit Class : MBA Star Designation : GDR3 4155332686530844800 Star Coordinates (ICRF) : RA = 18 42 17.9334, DE = -09 36 42.590 [2] Star Magnitudes : G = 12.61 mag, RP = 11.67 mag, BP = 13.51 mag Object Magnitude : V = 15.07 mag Estimated Magnitude Drop : 2.6 mag Estimated Max. Duration : 5.5 sec Object Mean Diameter : 80.0 km (src: astorb) Speed of the shadow : 14.6 km/s Elongation to Moon & Sun : 61° (sunlit = 96%), Sun = 97° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#81 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 8e5e8910-ddb3-11f0-547e-732b4eff9c98 [observed]

 Occultation Date + Time   : 2023-04-08 at 01:41:38 UT +/- 0.0 min  [1]
 Object Designation        : (676) Melitta
 Orbit Class               : MBA
 Star Designation          : GDR3 4155332686530844800
 Star Coordinates (ICRF)   : RA = 18 42 17.9334, DE = -09 36 42.590  [2]
 Star Magnitudes           : G = 12.61 mag, RP = 11.67 mag, BP = 13.51 mag
 Object Magnitude          : V = 15.07 mag
 Estimated Magnitude Drop  : 2.6 mag
 Estimated Max. Duration   : 5.5 sec
 Object Mean Diameter      : 80.0 km  (src: astorb)
 Speed of the shadow       : 14.6 km/s
 Elongation to Moon & Sun  : 61° (sunlit = 96%), Sun = 97°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#81
 Note                      : FP:true

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

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