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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1931250623524509 1.0597e-08  
a 2.195034871363816 5.4041e-09 au
q 1.771118624965875 2.3288e-08 au
i 3.950004402441497 6.3651e-07 deg
node 9.015876268000349 9.2352e-06 deg
peri 350.8310053819172 9.004e-06 deg
M 216.2124029266544 4.0822e-06 deg
tp 2459674.938023704654
(2022-Apr-05.43802370)
1.4323e-05 TDB
period 1187.847157961421
3.25
4.3866e-06
1.201e-08
d
yr
n .3030692943844988 1.1192e-09 deg/d
Q 2.618951117761757 6.4477e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2427  
   data-arc span      25759 days (70.52 yr)  
   first obs. used      1950-09-12  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45145  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:12:08  

Additional Information
 Earth MOID = .76633 au 
 Jupiter MOID = 2.83113 au 
 T_jup = 3.642 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.45   n/a E2021B10  
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

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 ]
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