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JPL Small-Body Database Browser
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2362 Mark Twain (1976 SH2)
Classification: Main-belt Asteroid          SPK-ID: 2002362
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927185487889709 4.5874e-08  
a 2.195526852998361 6.1559e-09 au
q 1.772408104061301 1.0165e-07 au
i 3.949348463558002 4.9382e-06 deg
node 9.028687557608764 4.5311e-05 deg
peri 350.8354795492794 4.6081e-05 deg
M 34.41685667775492 8.1545e-06 deg
tp 2458486.900803584134
(2019-Jan-03.40080358)
2.6786e-05 TDB
period 1188.24653548749
3.25
4.9974e-06
1.368e-08
d
yr
n .302967430788516 1.2742e-09 deg/d
Q 2.618645601935421 7.3422e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1971  
   data-arc span      25247 days (69.12 yr)  
   first obs. used      1950-09-12  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47947  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:15:14  

Additional Information
 Earth MOID = .768383 au 
 Jupiter MOID = 2.827 au 
 T_jup = 3.642 
[ 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 13.3   n/a MPO256880  
diameter diameter 4.331 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.312   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2362 Mark Twain (1976 SH2)          Discovered 1976-Sep-24 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 SH2 = 1950 RL1 = 1969 LJ = 1969 NA = 1973 YA1 = 1976 UT20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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