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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2770983651178688 2.3693e-08  
a 2.300302930796351 4.5686e-09 au
q 1.66289274939684 5.5292e-08 au
i 4.057235432563126 3.672e-07 deg
node 290.2942765762591 1.1721e-05 deg
peri 59.5875186927171 1.2174e-05 deg
M 127.4351692290085 4.3768e-06 deg
tp 2458945.410440689055
(2020-Apr-05.91044069)
1.4731e-05 TDB
period 1274.312596235594
3.49
3.7963e-06
1.039e-08
d
yr
n .2825052511161425 8.4162e-10 deg/d
Q 2.937713112195862 5.8345e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3521  
   data-arc span      36022 days (98.62 yr)  
   first obs. used      1922-10-14  
   last obs. used      2021-05-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38863  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:48:36  

Additional Information
 Earth MOID = .660442 au 
 Jupiter MOID = 2.51342 au 
 T_jup = 3.537 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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