2018 PJ21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.4551328241 ± 3.78e-05
Semi-major axis (a)	2.2134478359 AU ± 1.79e-04
Inclination (i)	7.78779167° ± 4.58e-04
Long. of Asc. Node (Ω)	151.74184132° ± 1.02e-04
Arg. of Perihelion (ω)	183.12691930° ± 5.79e-04
Mean Anomaly (M)	71.20575400° ± 9.64e-02
Mean Motion (n)	0.2993011179°/day ± 3.63e-05
Perihelion dist (q)	1.20603507 AU ± 1.29e-04
Aphelion dist (Q)	3.22086060 AU ± 2.74e-04
Orbital Period	3.29309256 yr ± 4.00e-04

Physical Parameters

H (abs. magnitude)	24.80
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-06-02
RMS Residual	0.235″
Uncertainty	2
Orbit Type	Amor
MOID	0.193846 AU
Observations Used	16
Oppositions	1
Arc Total	2018-2018
First Observation Used	2018-08-11
Last Observation Used	2018-10-12

Observations (16)

Date	Type	RA	Dec	Mag	Band	Observatory
2018-08-11 10:55:01	C	21 51 21.308	-03 17 19.43	–	U	F51
2018-08-11 11:11:00	C	21 51 22.899	-03 17 35.29	–	U	F51
2018-08-11 11:26:57	C	21 51 24.543	-03 17 52.13	–	U	F51
2018-08-11 11:42:54	C	21 51 26.157	-03 18 08.38	–	U	F51
2018-08-12 07:05:48	C	21 53 38.36	-03 38 25.5	–	u	H21
2018-08-12 07:13:06	C	21 53 39.10	-03 38 33.1	–	u	H21
2018-08-12 07:27:24	C	21 53 40.62	-03 38 47.4	–	u	H21
2018-08-12 11:06:23	C	21 54 06.070	-03 42 26.76	–	V	568
2018-08-12 11:10:29	C	21 54 06.486	-03 42 31.08	–	V	568
2018-08-12 11:13:13	C	21 54 06.769	-03 42 33.98	–	V	568
2018-08-14 11:20:34	C	21 59 39.55	-04 35 03.4	–	o	291
2018-08-14 11:34:35	C	21 59 41.10	-04 35 18.8	–	o	291
2018-09-03 06:03:57	C	22 58 21.02	-14 17 52.9	–	U	807
2018-09-03 06:12:02	C	22 58 21.91	-14 18 02.1	–	U	807
2018-09-03 06:21:15	C	22 58 22.92	-14 18 12.2	–	U	807
2018-10-12 10:19:53	C	00 20 24.381	-20 26 28.98	–	V	T12