Collaborative Occultation Resources and Archive (CORA)

2025-02-16 / TYC 1352-00157-1 / (1127) Mimi

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith	O+	CCD	M280	ES	NTP	01:33:26	01:35:20.01	01:35:26.73	01:37:26	0.02	0.02	6.72	41.7
2	show	Matthieu Conjat	O+	VID	T400	FR	GPS	01:35:23	01:37:36.69	01:37:43.71	01:39:40	0.013	0.012	7.02	43.5
3	show	Wolfgang Beisker	O-	VID	M360	PT	GPS	01:34:30			01:36:15

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#68 : d43a4bf0-86ce-11ef-78cd-f3bc7fbd32ea [db: asteroids]

Using prediction d43a4bf0-86ce-11ef-78cd-f3bc7fbd32ea 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 = -4749.0, 20.1 km
Circular diameter = 54 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: 2025-02-16, 01:35 UT (JD = 2460722.566)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1272	None	12.746	224°, -57°	2.44915e6	11572.6	0.0°	None	None	not scaled	2016-01-12

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] : d43a4bf0-86ce-11ef-78cd-f3bc7fbd32ea [asteroids] Occultation Date + Time : 2025-02-16 at 01:28:55 UT +/- 0.09 min [1] Object Designation : (1127) Mimi Orbit Class : MBA Star Designation : GDR3 3365895054454652544 Star Coordinates (ICRF) : RA = 06 57 02.1640, DE = +19 54 45.594 [2] Star Magnitudes : G = 10.38 mag, RP = 9.88 mag, BP = 10.71 mag Object Magnitude : V = 13.96 mag Estimated Magnitude Drop : 3.6 mag Estimated Max. Duration : 7.6 sec Object Mean Diameter : 46.8 km (src: astorb) Speed of the shadow : 6.2 km/s Elongation to Moon & Sun : 83° (sunlit = 89%), Sun = 136° Cross-track uncertainty : 0.7 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.45 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#68 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : d43a4bf0-86ce-11ef-78cd-f3bc7fbd32ea [asteroids]

 Occultation Date + Time   : 2025-02-16 at 01:28:55 UT +/- 0.09 min  [1]
 Object Designation        : (1127) Mimi
 Orbit Class               : MBA
 Star Designation          : GDR3 3365895054454652544
 Star Coordinates (ICRF)   : RA = 06 57 02.1640, DE = +19 54 45.594  [2]
 Star Magnitudes           : G = 10.38 mag, RP = 9.88 mag, BP = 10.71 mag
 Object Magnitude          : V = 13.96 mag
 Estimated Magnitude Drop  : 3.6 mag
 Estimated Max. Duration   : 7.6 sec
 Object Mean Diameter      : 46.8 km  (src: astorb)
 Speed of the shadow       : 6.2 km/s
 Elongation to Moon & Sun  : 83° (sunlit = 89%), Sun = 136°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.45 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#68

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

More Data and Informations

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