| 1863 Antinous (1948 EA) |
| Classification: Apollo [NEO] SPK-ID: 2001863 |
[ hide orbit diagram ]
For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 200 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .6063724027515934 | 2.6662e-08 | |
| a | 2.258645821289091 | 1.5844e-09 | au |
| q | .8890653276691789 | 6.0184e-08 | au |
| i | 18.39925248724597 | 5.4722e-06 | deg |
| node | 346.4341231003507 | 1.14e-05 | deg |
| peri | 268.0826997811582 | 1.1693e-05 | deg |
| M | 127.8864631908113 | 3.3516e-06 | deg |
| tp | 2458760.053965189088
(2019-Oct-03.55396519) | 1.1353e-05 | TDB |
| period | 1239.854231447077
3.39 | 1.3046e-06
3.572e-09 | d
yr |
| n | .2903567136112699 | 3.0552e-10 | deg/d |
| Q | 3.628226314909003 | 2.5452e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457299.5 (2015-Oct-04.0) TDB
Reference: JPL 200 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .606321522090843 | 2.6664e-08 | |
| q | .889586955780325 | 6.0218e-08 | au |
| tp | 2457519.561534484931
(2016-May-11.06153448) | 1.0899e-05 | TDB |
| node | 346.489997550445 | 1.1396e-05 | deg |
| peri | 267.9980658445074 | 1.1691e-05 | deg |
| i | 18.40009525390754 | 5.4722e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
7.109845326207469E-16 |
-1.605589994002698E-15 |
-1.215609038397345E-13 |
1.66016424227231E-15 |
-3.469119103878714E-14 |
-4.195742731226202E-15 |
| q |
-1.605589994002698E-15 |
3.626245575788167E-15 |
2.771023295851021E-13 |
-3.819976746982154E-15 |
7.861298857625447E-14 |
1.049023080628902E-14 |
| tp |
-1.215609038397345E-13 |
2.771023295851021E-13 |
1.187776205320111E-10 |
4.728742399592213E-12 |
3.437638765477465E-11 |
3.220027030628334E-12 |
| node |
1.66016424227231E-15 |
-3.819976746982154E-15 |
4.728742399592213E-12 |
1.298741156752367E-10 |
-1.207668912091837E-10 |
3.077967920288097E-12 |
| peri |
-3.469119103878714E-14 |
7.861298857625447E-14 |
3.437638765477465E-11 |
-1.207668912091837E-10 |
1.366809865491598E-10 |
-1.638181968316825E-12 |
| i |
-4.195742731226202E-15 |
1.049023080628902E-14 |
3.220027030628334E-12 |
3.077967920288097E-12 |
-1.638181968316825E-12 |
2.994482118002847E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.40 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
2.1 |
km |
n/a |
Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 |
|
| rotation period |
rot_per |
7.453 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm]
[Warner, B.D. (2016) Minor Planet Bull. 43, 240-250.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.]
[Warner, B.D.; Pravec, P.; Kusnirak, P.; Benishek, V.; Ferrero, A. (2017) Minor Planet Bull. 44, 206-212.] |
| geometric albedo |
albedo |
0.24 |
|
n/a |
Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 |
|
| B-V |
BV |
0.763 |
|
0.019 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=21.71, mean=22.67, max.=23.62) deg. |
| U-B |
UB |
0.359 |
|
0.042 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=21.71, mean=22.67, max.=23.62) deg. |
| Tholen spectral type |
spec_T |
SU |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Sq |
|
n/a |
Binzel et al. (2001) Icarus 151, 139-149 |
|
|
| 1863 Antinous (1948 EA) Discovered 1948-Mar-07 by Wirtanen, C. A. at Mount Hamilton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 1907-Oct-11 06:15 |
< 00:01 |
Mars |
0.0894322999735626 |
0.0894276930030489 |
0.0894369069765862 |
18.0795360919673 |
18.0793590294489 |
2417859.760448485 |
0.360457743783826 |
245.004619883053 |
12.4412918635628 |
20.3649464235318 |
375579.415480306 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 1914-Mar-29 02:55 |
< 00:01 |
Earth |
0.216801787933039 |
0.216798503906287 |
0.216805072029655 |
19.8211173532386 |
19.8204973011746 |
2420220.621338978 |
0.329080944742253 |
254.337807343359 |
11.9253657453478 |
49.9946432924895 |
1993621.14491716 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 1931-Apr-06 05:10 |
< 00:01 |
Earth |
0.174222023802769 |
0.174221435097441 |
0.174222612552652 |
15.6406740162095 |
15.6396961770757 |
2426437.715201461 |
0.230120924502465 |
153.964401256557 |
11.5572271735244 |
-79.8741729768625 |
2238385.59773761 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 1948-Apr-05 23:14 |
< 00:01 |
Earth |
0.176868395093946 |
0.17686793096243 |
0.176868859238764 |
15.3983357140764 |
15.3973573463118 |
2432647.468365239 |
0.138074101075419 |
91.333891254707 |
11.5881218733319 |
-77.2215850309277 |
2259067.47635453 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 1965-Feb-02 06:30 |
< 00:01 |
Mars |
0.0984644562023214 |
0.0984641376496525 |
0.0984647747551693 |
16.2935275443056 |
16.2933490953686 |
2438793.770742255 |
0.0826199008458496 |
42.8158716320624 |
15.6628233478972 |
86.191022956764 |
936120.343220148 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 1965-Apr-06 03:08 |
< 00:01 |
Earth |
0.179654662404362 |
0.179654322478292 |
0.179655002333088 |
15.3032326748061 |
15.3022634948241 |
2438856.630504738 |
0.0837195871779138 |
50.0483412096301 |
11.5557837274456 |
-75.2437329829849 |
2297248.29593387 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 1982-Apr-05 22:46 |
< 00:01 |
Earth |
0.182027986170155 |
0.182027723367592 |
0.182028248973048 |
15.4520182366088 |
15.4510709044215 |
2445065.448451530 |
0.0623044265792048 |
28.8256963157219 |
11.5411478171383 |
-76.4041901863017 |
2342543.93370524 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 1999-Apr-01 14:44 |
< 00:01 |
Earth |
0.18940942166516 |
0.189409180769765 |
0.189409662560577 |
17.8563631636097 |
17.8555753429793 |
2451270.114115082 |
0.049419645474427 |
18.3951935405353 |
11.699061999359 |
78.9307232983555 |
2340715.55353148 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2016-Mar-27 11:19 |
< 00:01 |
Earth |
0.23717704149693 |
0.237176740262603 |
0.237177342731365 |
20.2354300502476 |
20.2348748709943 |
2457474.971428055 |
0.0449235155895862 |
19.9219394474413 |
11.7994706257213 |
54.6127398082293 |
2565536.2641569 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2033-Mar-23 16:37 |
< 00:01 |
Earth |
0.30633430670236 |
0.306333783815697 |
0.306334829589388 |
22.6518720686482 |
22.6514880818431 |
2463680.192118555 |
0.0489640307109561 |
32.0491665939229 |
11.791374462424 |
38.7073715842451 |
2551376.51208851 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2043-Aug-24 20:36 |
< 00:01 |
Earth |
0.360031297392582 |
0.360030465558102 |
0.360032129227471 |
24.2545560032771 |
24.2542508756693 |
2467486.358242433 |
0.0583691894454636 |
45.9170766314558 |
11.5104287020455 |
26.2968283264704 |
2189419.74961104 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2050-Mar-17 21:01 |
< 00:01 |
Earth |
0.429653215994742 |
0.429652310727347 |
0.429654121262553 |
26.4321526647536 |
26.4319180454813 |
2469883.375827870 |
0.065203802431212 |
50.2736352159654 |
11.7495697811233 |
26.9168860062498 |
2582990.61853469 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2060-Aug-19 18:18 |
< 00:01 |
Earth |
0.277291361135325 |
0.277290301282419 |
0.27729242099039 |
21.6938349534096 |
21.6933920142073 |
2473691.262674214 |
0.0838288542519801 |
66.0543233202716 |
11.5128886321216 |
37.5315209565607 |
2123244.14197961 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2077-Aug-17 02:41 |
< 00:01 |
Earth |
0.234611609644136 |
0.234610479420333 |
0.234612739873699 |
20.1511878996247 |
20.1506243031365 |
2479897.611504368 |
0.104838616633882 |
81.7620279232645 |
11.555012951233 |
47.0393902285689 |
2123861.71996352 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2094-Aug-13 08:54 |
< 00:01 |
Earth |
0.193127313340807 |
0.193126537405157 |
0.193128089290706 |
18.0439440064797 |
18.0431793851849 |
2486102.870748503 |
0.128334643842614 |
94.8716697562137 |
11.470407513122 |
66.8980325180028 |
2225728.07335442 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2111-Aug-16 02:17 |
< 00:01 |
Earth |
0.203638135504361 |
0.203636812907983 |
0.20363945812169 |
18.8827237383117 |
18.8820307968079 |
2492313.595342933 |
0.163328504679189 |
123.707936678381 |
11.6822281780199 |
58.1943437018832 |
2117975.10461228 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2128-Aug-22 00:22 |
< 00:01 |
Earth |
0.306177812055369 |
0.306175015228074 |
0.306180608892862 |
22.6619725109516 |
22.6615884991135 |
2498529.515062084 |
0.205874340654762 |
165.143588307305 |
11.9708582487583 |
32.4768633792946 |
1943682.12975261 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2135-Mar-18 01:17 |
< 00:01 |
Earth |
0.47275848100997 |
0.47275520808187 |
0.472761753942719 |
27.3355227192986 |
27.3353165389436 |
2500928.553537554 |
0.211072264600271 |
179.180956468049 |
11.2148804371576 |
24.428290365759 |
2479893.1638553 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2145-Aug-28 19:43 |
< 00:01 |
Earth |
0.441508972551783 |
0.441505522169312 |
0.441512422938017 |
26.6634479856331 |
26.6632216471731 |
2504745.321707966 |
0.228597137802539 |
183.768405299808 |
12.0877506974054 |
20.6137165475797 |
1833533.69950651 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2152-Mar-28 11:54 |
< 00:01 |
Earth |
0.285884056542221 |
0.285881353699306 |
0.28588675941619 |
20.6973765501304 |
20.696926239868 |
2507148.995622181 |
0.24459930502257 |
200.956332013977 |
10.7808049057837 |
47.9719005521848 |
2788592.6228433 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2169-Apr-07 18:18 |
< 00:01 |
Earth |
0.225733484106892 |
0.225733048914756 |
0.225733919360504 |
15.1149582583032 |
15.1141773129603 |
2513368.262370945 |
0.303953646462158 |
211.224381560684 |
10.1428082398441 |
-84.7798917759044 |
3290051.97499924 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
| 2186-Jul-23 19:33 |
00:01 |
Earth |
0.280473437884031 |
0.280469513561254 |
0.280477362207333 |
10.9653988976232 |
10.9645325078019 |
2519684.314837089 |
1.16651173974183 |
196.637769117572 |
9.00490996834368 |
-5.5686952862109 |
827620.370092437 |
T |
200 |
CATAB v2.0f-lin.ifort 2021-Apr-12 13:03:14 |
2021-Apr-12 13:03 |
|
|
