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2237 Melnikov (1938 TB)
Classification: Main-belt Asteroid          SPK-ID: 2002237
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2174393224972436 3.3319e-08  
a 3.141822972880253 1.5578e-08 au
q 2.458667114250895 1.0406e-07 au
i 2.400702433462115 4.1014e-06 deg
node 118.4765375043853 9.2311e-05 deg
peri 266.2531753449848 9.276e-05 deg
M 121.3024740048828 9.7804e-06 deg
tp 2457915.109388716761
(2017-Jun-10.60938872)
5.352e-05 TDB
period 2034.093880492774
5.57
1.5129e-05
4.142e-08
d
yr
n .1769829816865617 1.3163e-09 deg/d
Q 3.82497883150961 1.8966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2344  
   data-arc span      29450 days (80.63 yr)  
   first obs. used      1938-09-22  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44911  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:32:24  

Additional Information
 Earth MOID = 1.46332 au 
 Jupiter MOID = 1.62954 au 
 T_jup = 3.172 
[ 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 12.0   n/a MPO384769  
diameter diameter 21.353 km 0.498 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2237 Melnikov (1938 TB)          Discovered 1938-Oct-02 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 TB = 1949 SO1 = 1972 TB2 = 1977 RU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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