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310 Margarita (A891 KA)
Classification: Main-belt Asteroid          SPK-ID: 2000310
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142003858593613 3.936e-08  
a 2.764561123849008 9.1554e-09 au
q 2.448847176773661 1.0894e-07 au
i 3.169927641420506 4.2007e-06 deg
node 229.2406774035773 6.846e-05 deg
peri 325.2893878689903 7.0304e-05 deg
M 77.81325207915253 1.6267e-05 deg
tp 2458637.598479992247
(2019-Jun-03.09847999)
7.5733e-05 TDB
period 1678.949840958939
4.60
8.3403e-06
2.283e-08
d
yr
n .2144197469260812 1.0651e-09 deg/d
Q 3.080275070924353 1.0201e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2987  
   data-arc span      39242 days (107.44 yr)  
   first obs. used      1913-01-07  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:11:28  

Additional Information
 Earth MOID = 1.44846 au 
 Jupiter MOID = 1.88631 au 
 T_jup = 3.328 
[ 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 10.1   n/a MPO347513  
diameter diameter 33.708 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.070 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Oey, J. (2010) Minor Planet Bull. 37, 144.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.115   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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)

310 Margarita (A891 KA)          Discovered 1891-May-16 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A891 KA = A920 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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