143404 (2003 BD44)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6077342662 ± 5.97e-09
Semi-major axis (a)1.9673954890 AU ± 8.99e-10
Inclination (i)2.66379044° ± 1.03e-06
Long. of Asc. Node (Ω)181.16269684° ± 8.92e-06
Arg. of Perihelion (ω)89.39540317° ± 9.00e-06
Mean Anomaly (M)25.11462466° ± 8.46e-07
Mean Motion (n)0.3571698318°/day ± 2.45e-10
Perihelion dist (q)0.77174184 AU ± 1.17e-08
Aphelion dist (Q)3.16304914 AU ± 1.18e-08
Orbital Period2.75954517 yr ± 1.89e-09
Physical Parameters
H (abs. magnitude)16.95
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.161″
Uncertainty0
Orbit TypeApollo
MOID0.017661 AU
Observations Used1365
Radar Obs Used3
Gaia Obs Used56
Oppositions23
Arc Total1981-2025
First Observation Used1981-02-28
Last Observation Used2025-12-06
Observations (1504)
Date Type RA Dec Mag Band Observatory
1981-02-28 11:51:52 08 47 49.31 +14 37 35.9 c 260
1981-02-28 12:56:52 08 47 44.54 +14 37 58.8 c 260
1981-09-29 11:18:11 21 35 22.95 -13 14 13.7 c 260
1981-09-29 12:33:11 21 35 39.38 -13 13 24.1 c 260
2003-01-17 09:13:34 C 09 25 31.25 +11 28 08.3 c 644
2003-01-17 09:52:18 C 09 25 29.39 +11 28 16.4 c 644
2003-01-27 10:35:48 C 09 12 35.84 +12 24 28.2 c 644
2003-01-27 11:06:23 C 09 12 33.97 +12 24 36.4 c 644
2003-01-27 11:47:31 C 09 12 31.45 +12 24 47.2 c 644
2003-01-30 07:22:05 C 09 08 21.29 +12 43 21.6 c 699
2003-01-30 07:50:46 C 09 08 19.36 +12 43 30.7 c 699
2003-01-30 08:19:24 C 09 08 17.57 +12 43 38.3 c 699
2003-01-30 08:48:05 C 09 08 15.69 +12 43 47.4 c 699
2003-01-30 23:41:28 C 09 07 18.97 +12 47 58.3 d J95
2003-01-31 00:01:14 C 09 07 17.69 +12 48 04.0 d J95
2003-01-31 04:42:10 C 09 06 59.90 +12 49 25.8 c 858
2003-01-31 04:56:52 C 09 06 58.90 +12 49 29.7 c 858
2003-01-31 05:11:34 C 09 06 57.89 +12 49 34.4 c 858
2003-01-31 07:53:23 C 09 06 47.35 +12 50 20.9 19.4 c 704
2003-01-31 08:53:48 C 09 06 43.30 +12 50 38.5 19.4 c 704
2003-01-31 09:13:58 C 09 06 42.08 +12 50 44.2 20.1 c 704
2003-02-01 08:50:20 C 09 05 10.08 +12 57 33.9 d 734
2003-02-01 08:57:20 C 09 05 09.77 +12 57 35.5 d 734
2003-02-01 23:31:24 C 09 04 12.61 +13 01 50.0 c 246
2003-02-01 23:33:02 C 09 04 12.49 +13 01 51.3 c 246
2003-02-01 23:34:57 C 09 04 12.33 +13 01 51.4 c 246
2003-02-03 09:21:42 C 09 01 57.79 +13 11 55.9 c 644
2003-02-03 09:53:24 C 09 01 55.57 +13 12 05.7 c 644
2003-02-03 10:25:35 C 09 01 53.40 +13 12 15.0 c 644
2003-02-04 00:17:48 C 09 00 57.76 +13 16 23.3 d J95
2003-02-04 00:30:22 C 09 00 56.85 +13 16 27.4 d J95
2003-02-04 00:42:52 C 09 00 56.01 +13 16 31.4 d J95
2003-02-05 01:12:59 C 08 59 16.46 +13 23 57.3 d 620
2003-02-05 01:14:38 C 08 59 16.37 +13 23 58.1 d 620
2003-02-05 02:24:36 C 08 59 11.50 +13 24 19.7 d 620
2003-02-05 23:16:52 C 08 57 46.23 +13 30 42.9 d J95
2003-02-05 23:29:24 C 08 57 45.34 +13 30 46.9 d J95
2003-02-05 23:42:03 C 08 57 44.53 +13 30 51.0 d J95
2003-02-06 06:58:18 C 08 57 14.56 +13 33 07.0 c 670
2003-02-06 09:55:14 C 08 57 02.18 +13 34 01.5 c 670
2003-02-07 06:06:17 C 08 55 38.86 +13 40 16.4 c 649
2003-02-07 06:23:31 C 08 55 37.62 +13 40 21.5 c 649
2003-02-07 06:43:00 C 08 55 36.26 +13 40 27.5 c 649
2003-02-08 23:30:27 C 08 52 46.20 +13 53 11.6 941
2003-02-08 23:33:44 C 08 52 46.05 +13 53 12.4 941
2003-02-08 23:43:37 C 08 52 45.24 +13 53 16.7 941
2003-02-08 23:46:54 C 08 52 45.19 +13 53 17.6 941
2003-02-09 00:05:19 C 08 52 43.75 +13 53 23.0 d 176
2003-02-09 00:11:30 C 08 52 43.31 +13 53 24.8 d 176
2003-02-09 00:17:10 C 08 52 42.90 +13 53 26.6 d 176
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-04-14 00:06:00 67010614.67 1 us 2380 -1 -1
2017-04-16 04:00:00 59008729.31 1.5 us 8560 -14 -14
2017-04-17 02:00:00 56937351.73 1.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)