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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .182598458614789 3.559e-08  
a 2.793320578231563 1.3211e-08 au
q 2.283264546229509 9.9081e-08 au
i 7.863965029903651 5.0584e-06 deg
node 28.25750883816407 2.9932e-05 deg
peri 93.01823959297774 3.3192e-05 deg
M 223.3658576036385 1.4257e-05 deg
tp 2459647.696757156428
(2022-Mar-09.19675716)
6.9219e-05 TDB
period 1705.216781764778
4.67
1.2097e-05
3.312e-08
d
yr
n .2111168526194221 1.4977e-09 deg/d
Q 3.303376610233618 1.5624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1894  
   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      .4923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:31:30  

Additional Information
 Earth MOID = 1.31523 au 
 Jupiter MOID = 1.83704 au 
 T_jup = 3.290 
[ 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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