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JPL Small-Body Database Browser
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2807 Karl Marx (1969 TH6)
Classification: Main-belt Asteroid          SPK-ID: 2002807
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1808644129413443 3.5574e-08  
a 2.797360668822299 1.3508e-08 au
q 2.291417673670547 9.9256e-08 au
i 7.864675503746548 5.0701e-06 deg
node 28.37398944941593 2.9917e-05 deg
peri 92.84895031603305 3.3295e-05 deg
M 139.0909015065858 1.429e-05 deg
tp 2457940.236416528669
(2017-Jul-05.73641653)
6.6774e-05 TDB
period 1708.917603344634
4.68
1.2378e-05
3.389e-08
d
yr
n .2106596592459581 1.5259e-09 deg/d
Q 3.30330366397405 1.5951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1819  
   data-arc span      34899 days (95.55 yr)  
   first obs. used      1924-01-30  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5003  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:19:55  

Additional Information
 Earth MOID = 1.32369 au 
 Jupiter MOID = 1.83834 au 
 T_jup = 3.289 
[ 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 12.7   n/a MPO347542  
diameter diameter 16.866 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
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)

2807 Karl Marx (1969 TH6)          Discovered 1969-Oct-15 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1969 TH6 = 1952 BD1 = 1974 XF = 1976 GD3 = A924 BE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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