Cora»Occultation

2024-12-31 / UCAC4 644-043917 / (9144) Hollisjohnson

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Jiri Kubanek	O+	VID	M200	CZ	GPS	00:31:01	00:32:31.12	00:32:31.61	00:34:02	0.04	0.04	0.49	6.1

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

1 observation found in db: sodis

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

JPL#58 : dbda6ef0-ddb5-11f0-547e-c271bfce2326 [db: observed]

Using prediction dbda6ef0-ddb5-11f0-547e-c271bfce2326 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2024-12-31, 00:32 UT (JD = 2460675.522)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 4367	1.0	10.478	93°, 39°	2.448534e6	12141.5	0.0°	None	2019-09-26	not scaled	2019-05-07
# 4368	1.0	10.478	273°, 10°	2.448534e6	12141.5	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

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

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : dbda6ef0-ddb5-11f0-547e-c271bfce2326 [observed] Occultation Date + Time : 2024-12-31 at 00:32:16 UT +/- 0.0 min [1] Object Designation : (9144) Hollisjohnson Orbit Class : MBA Star Designation : GDR3 0919637297908327296 Star Coordinates (ICRF) : RA = 07 55 22.8998, DE = +38 39 52.139 [2] Star Magnitudes : G = 12.6 mag, RP = 12.15 mag, BP = 12.88 mag Object Magnitude : V = 17.05 mag Estimated Magnitude Drop : 4.5 mag Estimated Max. Duration : 0.6 sec Object Mean Diameter : 6.8 km (src: astorb) Speed of the shadow : 12.4 km/s Elongation to Moon & Sun : 163° (sunlit = 0%), Sun = 158° Cross-track uncertainty : 0.7 mas = 0 km = 0.12 path-width (1-sig) RUWE and duplicate source : 1.18 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#58 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : dbda6ef0-ddb5-11f0-547e-c271bfce2326 [observed] Occultation Date + Time : 2024-12-31 at 00:32:16 UT +/- 0.0 min [1] Object Designation : (9144) Hollisjohnson Orbit Class : MBA Star Designation : GDR3 0919637297908327296 Star Coordinates (ICRF) : RA = 07 55 22.8998, DE = +38 39 52.139 [2] Star Magnitudes : G = 12.6 mag, RP = 12.15 mag, BP = 12.88 mag Object Magnitude : V = 17.05 mag Estimated Magnitude Drop : 4.5 mag Estimated Max. Duration : 0.6 sec Object Mean Diameter : 6.8 km (src: astorb) Speed of the shadow : 12.4 km/s Elongation to Moon & Sun : 163° (sunlit = 0%), Sun = 158° Cross-track uncertainty : 0.7 mas = 0 km = 0.12 path-width (1-sig) RUWE and duplicate source : 1.18 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#58 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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