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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .192946380694992 4.1842e-08  
a 2.19535806318197 5.7216e-09 au
q 1.771771670561441 9.204e-08 au
i 3.949607200665572 4.2957e-06 deg
node 9.016730470946335 4.3762e-05 deg
peri 350.8278406529993 4.4463e-05 deg
M 155.6071027096887 8.2322e-06 deg
tp 2458486.949225641843
(2019-Jan-03.44922564)
2.6396e-05 TDB
period 1188.109511388166
3.25
4.6447e-06
1.272e-08
d
yr
n .3030023718767998 1.1845e-09 deg/d
Q 2.618944455802499 6.8256e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2352  
   data-arc span      25476 days (69.75 yr)  
   first obs. used      1950-09-12  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:44:05  

Additional Information
 Earth MOID = .768623 au 
 Jupiter MOID = 2.8303 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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