2015 YY9

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5644581352 ± 2.00e+00
Semi-major axis (a)1.8650948637 AU ± 3.00e+00
Inclination (i)8.29951147° ± 4.00e+00
Long. of Asc. Node (Ω)77.92151353° ± 5.00e+00
Arg. of Perihelion (ω)300.41024168° ± 6.00e+00
Mean Anomaly (M)339.82728298° ± 1.20e-01
Mean Motion (n)0.3869505800°/day ± 9.34e-01
Perihelion dist (q)0.81233480 AU ± 3.95e+00
Aphelion dist (Q)2.91783880 AU ± 6.00e+00
Orbital Period2.54711510 yr ± 6.15e+00
Physical Parameters
H (abs. magnitude)22.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.295″
Uncertainty3
Orbit TypeApollo
MOID0.000973 AU
Observations Used110
Oppositions1
Arc Total2015-2016
First Observation Used
Last Observation Used2016-01-14
Observations (110)
Date Type RA Dec Mag Band Observatory
2016-01-06 10:04:41 C 04 25 07.653 +37 39 33.06 t 568
2016-01-06 10:05:35 C 04 25 07.834 +37 39 33.44 t 568
2016-01-06 10:07:25 C 04 25 08.201 +37 39 34.06 t 568
2016-01-07 12:43:55 C 04 30 34.448 +37 49 33.45 t 568
2016-01-07 12:44:38 C 04 30 34.584 +37 49 33.63 t 568
2016-01-07 12:50:11 C 04 30 35.674 +37 49 35.02 t 568
2016-01-07 12:53:12 C 04 30 36.253 +37 49 35.86 t 568
2016-01-07 12:54:45 C 04 30 36.556 +37 49 36.17 t 568
2016-01-14 04:34:07 C 04 57 09.31 +38 16 43.2 q I52
2016-01-14 04:55:41 C 04 57 12.09 +38 16 43.7 q I52