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1202 Marina (1931 RL)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001202
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1669949195864591 4.2467e-08  
a 4.000051378194649 2.6775e-08 au
q 3.332063119951329 1.6501e-07 au
i 3.332707142979486 4.4918e-06 deg
node 49.86737238181099 7.589e-05 deg
peri 307.4032648393337 7.6926e-05 deg
M 109.3617208754173 1.266e-05 deg
tp 2458112.813498207345
(2017-Dec-25.31349821)
9.962e-05 TDB
period 2922.111485511465
8.00
2.9339e-05
8.033e-08
d
yr
n .1231985849222273 1.237e-09 deg/d
Q 4.668039636437969 3.1246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2679  
   data-arc span      34847 days (95.41 yr)  
   first obs. used      1924-11-29  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46556  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:20:49  

Additional Information
 Earth MOID = 2.3297 au 
 Jupiter MOID = .79276 au 
 T_jup = 3.027 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.0   n/a MPO347524  
diameter diameter 54.93 km 2.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
rotation period rot_per 9.45 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.0337   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12

1202 Marina (1931 RL)          Discovered 1931-Sep-13 by Neujmin, G. at Simeis
Independent discovery Sept. 15 by K. Reinmuth, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast 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
1916-May-27 16:16 00:02 Jupiter 1.83738704467775 1.83738655729902 1.83738753205659 4.89396677893702 4.79884620381287 2421011.177951718 1.76747553325104 71.9005552572591 21.1093388863721 -83.4759258779686 4263123.77242789 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
1939-Feb-28 14:25 00:02 Jupiter 1.82038224553783 1.82038179212283 1.82038269895272 4.68512428067287 4.58473456166312 2429323.100685840 1.61332087585844 66.0617202811245 20.8083214643498 -89.1786581402569 4253193.52578515 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
1962-Jan-16 12:49 00:01 Jupiter 1.71060258045387 1.71060210744862 1.71060305345911 3.9287249390422 3.80059982277451 2437681.033806941 1.40718096763548 51.8953066116373 19.2359195314523 83.2747553470405 3450311.72469217 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
1985-Apr-13 12:17 < 00:01 Jupiter 1.60587166274244 1.60587111651136 1.60587220897342 3.34915159971728 3.18777502012614 2446169.011730636 0.966468838868222 46.9973632163718 19.8311987936459 81.5136681035495 2735779.54768993 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2009-Feb-06 02:06 < 00:01 Jupiter 1.57753935164084 1.57753879359529 1.57753990968639 3.34626412168394 3.18176535647097 2454868.587720000 0.380807666050426 44.9686115278476 20.9011364089341 82.3137132415476 2781479.37784322 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2033-May-22 09:07 < 00:01 Jupiter 1.60240921847819 1.60240866046444 1.60240977649195 3.67683289871433 3.53014360766648 2463739.879904837 0.890243054854292 46.7874678852669 22.2214992321158 82.0511108254751 2856029.56444331 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2057-Nov-03 11:16 00:02 Jupiter 1.59645963508201 1.59645909883165 1.59646017133227 3.82785029922761 3.68663963318379 2472670.969521997 1.55771326871536 59.5841409311272 22.7089584724701 88.5173167779718 3089232.18570627 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2082-Mar-05 13:14 00:02 Jupiter 1.5491603352825 1.54915978994469 1.54916088062031 3.65685280389682 3.50414722402323 2481559.051247328 1.98784491232638 72.1941980734895 22.1201362382083 -86.0479870597752 3041989.91261877 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2106-Feb-02 06:50 00:02 Jupiter 1.55582255187721 1.55582200323796 1.55582310051646 3.61667402898756 3.4628729362255 2490292.784659196 2.00635834535717 73.1469393830656 22.1110135638013 -86.1521232270729 3036679.41750492 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2129-Jun-10 03:24 00:02 Jupiter 1.65097627584151 1.65097564965255 1.65097690203038 3.99434519136841 3.86376845407466 2498821.641587550 1.7654766816602 69.0025542894456 27.2409777108089 89.8140217263371 2803880.66367189 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2152-May-14 16:23 00:02 Jupiter 1.79117040721333 1.79116975075545 1.79117106367111 4.50826383087927 4.4021207729905 2507196.182753692 1.65647829369833 59.935482928695 29.5701385232657 86.7897197134147 2868008.54050991 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2175-Feb-13 15:54 00:02 Jupiter 1.85979985989176 1.85979939691723 1.85980032286629 4.53767671777805 4.43617347318533 2515506.162712472 1.70497557767975 49.8964120788297 19.9027319707559 81.752782086401 4093548.19716751 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21
2197-Nov-13 19:29 00:02 Jupiter 1.79856618561168 1.79856579511782 1.79856657610564 3.96080559703231 3.84006439743284 2523815.311484006 1.78420860972785 46.9126873261196 12.5876771910657 77.3102925769674 3902242.11803727 T 36 CATAB v2.0f-lin.ifort 2020-May-20 01:20:59 2020-May-20 01:21

Alternate Designations
 1931 RL = 1931 TH = 1980 BL3 = A924 WG = A924 YA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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