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985 Rosina (A922 TC)
Classification: Mars-crossing Asteroid          SPK-ID: 2000985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2770573577009281 2.3965e-08  
a 2.300070488275487 4.5243e-09 au
q 1.662819036267997 5.5921e-08 au
i 4.057594512429014 3.6727e-07 deg
node 290.295163312791 1.173e-05 deg
peri 59.56338231840661 1.218e-05 deg
M 72.09478968842816 4.3093e-06 deg
tp 2458945.340628422912
(2020-Apr-05.84062842)
1.4835e-05 TDB
period 1274.119449751245
3.49
3.7594e-06
1.029e-08
d
yr
n .2825480766895798 8.3368e-10 deg/d
Q 2.937321940282976 5.7778e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3418  
   data-arc span      35936 days (98.39 yr)  
   first obs. used      1922-10-14  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39404  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 12:00:01  

Additional Information
 Earth MOID = .659431 au 
 Jupiter MOID = 2.51353 au 
 T_jup = 3.537 
[ 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 12.88   n/a E2021B10  
rotation period rot_per 3.0126 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Martinez, J.; Aymami, J.M.; Bosque, R.; Martin, J. (2010) Minor Planet Bull. 37, 42-43.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

985 Rosina (A922 TC)          Discovered 1922-Oct-14 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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