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137000 (1998 SH78)
Classification: Main-belt Asteroid          SPK-ID: 2137000
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09615203521985828 4.6208e-08  
a 2.43707896543081 1.2464e-08 au
q 2.202748862913131 1.1427e-07 au
i 3.568091896902971 4.3299e-06 deg
node 286.8464144927051 7.461e-05 deg
peri 56.08721848793494 7.7178e-05 deg
M 264.965770272794 2.0673e-05 deg
tp 2459367.343127243485
(2021-Jun-01.84312724)		 8.0713e-05 TDB
period 1389.641671077259
3.80		 1.066e-05
2.919e-08		 d
yr
n .2590595888801504 1.9873e-09 deg/d
Q 2.67140906794849 1.3662e-08 au
   Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      21822 days (59.75 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57521  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:48:12  

Additional Information
 Earth MOID = 1.19679 au 
 Jupiter MOID = 2.65157 au 
 T_jup = 3.495 
[ 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 16.3   n/a MPO436676  

137000 (1998 SH78)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 SH78 = 4210 P-L 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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