Cora»Occultation

2023-05-31 / UCAC4 359-156191 / (27157) 1998 YK27

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Sotirios Tsavdaridis	O-	CCD	T279	CY	GPS	21:46:08			21:48:08

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#61 : a1c08a80-ddb3-11f0-547e-70231efa46f1 [db: observed]

Using prediction a1c08a80-ddb3-11f0-547e-70231efa46f1 for map and profile fit

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Event Details
Occultation UUID [and DB] : a1c08a80-ddb3-11f0-547e-70231efa46f1 [observed] Occultation Date + Time : 2023-05-31 at 21:40:38 UT +/- 0.01 min [1] Object Designation : (27157) 1998 YK27 Orbit Class : MBA Star Designation : GDR3 4093430353687836800 Star Coordinates (ICRF) : RA = 18 35 44.9627, DE = -18 16 31.345 [2] Star Magnitudes : G = 12.89 mag, RP = 11.99 mag, BP = 13.73 mag Object Magnitude : V = 18.37 mag Estimated Magnitude Drop : 5.5 mag Estimated Max. Duration : 0.7 sec Object Mean Diameter : 6.0 km (src: astorb) Speed of the shadow : 8.8 km/s Elongation to Moon & Sun : 70° (sunlit = 88%), Sun = 151° Cross-track uncertainty : 0.3 mas = 0 km = 0.07 path-width (1-sig) RUWE and duplicate source : 0.9 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#61 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : a1c08a80-ddb3-11f0-547e-70231efa46f1 [observed] Occultation Date + Time : 2023-05-31 at 21:40:38 UT +/- 0.01 min [1] Object Designation : (27157) 1998 YK27 Orbit Class : MBA Star Designation : GDR3 4093430353687836800 Star Coordinates (ICRF) : RA = 18 35 44.9627, DE = -18 16 31.345 [2] Star Magnitudes : G = 12.89 mag, RP = 11.99 mag, BP = 13.73 mag Object Magnitude : V = 18.37 mag Estimated Magnitude Drop : 5.5 mag Estimated Max. Duration : 0.7 sec Object Mean Diameter : 6.0 km (src: astorb) Speed of the shadow : 8.8 km/s Elongation to Moon & Sun : 70° (sunlit = 88%), Sun = 151° Cross-track uncertainty : 0.3 mas = 0 km = 0.07 path-width (1-sig) RUWE and duplicate source : 0.9 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#61 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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