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Stellar Occultation by (69917) 1998 TF on 2025-10-01 (20:08:11 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : 9b59cd00-ddb8-11f0-547e-1792d75cfe55 [observed]

 Occultation Date + Time   : 2025-10-01 at 20:08:11 UT +/- 0.01 min  [1]
 Object Designation        : (69917) 1998 TF
 Star Designation          : GDR3 0108802417940829696
 Star Coordinates (ICRF)   : RA = 03 09 23.8583, DE = +21 42 54.325  [2]
 Star Magnitudes           : G = 12.96 mag, RP = 12.28 mag, BP = 13.48 mag
 Object Magnitude          : V = 17.86 mag
 Estimated Magnitude Drop  : 4.9 mag
 Estimated Max. Duration   : 1.2 sec
 Speed of the shadow       : 5.6 km/s
 Object Mean Diameter      : 7.0 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.2450 arcs/min @ PA = 291 deg
 Horizontal Parallax       : 4.6070 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 111° (sunlit = 68%), Sun = 138°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.20 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL57
 Note                      : FP:true

 Object is a <TNOs are Cool> target !

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


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