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491 Carina (A902 RG)
Classification: Main-belt Asteroid          SPK-ID: 2000491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08716015573901208 3.1041e-08  
a 3.189203943810087 1.2309e-08 au
q 2.911232431384128 9.4973e-08 au
i 18.86449840293977 3.1229e-06 deg
node 175.4086139568579 1.1062e-05 deg
peri 232.7660505338606 2.3397e-05 deg
M 178.3536552533823 2.1963e-05 deg
tp 2457969.873324106002
(2017-Aug-04.37332411)
0.00012524 TDB
period 2080.280344099105
5.70
1.2044e-05
3.297e-08
d
yr
n .1730535987715171 1.0019e-09 deg/d
Q 3.467175456236046 1.3382e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      43020 days (117.78 yr)  
   first obs. used      1902-09-04  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:15:02  

Additional Information
 Earth MOID = 1.95321 au 
 Jupiter MOID = 1.95631 au 
 T_jup = 3.108 
[ 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 9.1   n/a MPO473768  
diameter diameter 91.176 km 0.469 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.836 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Florczak, M.; Dotto, E.; Barucci, M.A.; Birlan, M.; et al. (1997) Planet. Space Sci. 45, 1423-1435.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 226-230.]
[Pilcher, F. (2019) Minor Planet Bull. 46, 360-363.]
geometric albedo albedo 0.037   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B C   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)

491 Carina (A902 RG)          Discovered 1902-Sep-03 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A902 RG = 1928 DA1 = 1930 QK = 1931 UR = 1942 WA = A894 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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