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JPL Small-Body Database Browser
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136997 (1998 SP72)
Classification: Main-belt Asteroid          SPK-ID: 2136997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976392916018745 4.5755e-08  
a 2.439862106958612 9.611e-09 au
q 1.957649488533055 1.1372e-07 au
i 2.269407322307031 3.3669e-06 deg
node 70.37534369249373 0.00013694 deg
peri 315.2974967146889 0.00013737 deg
M 137.6004288229748 1.0737e-05 deg
tp 2458068.436292144110
(2017-Nov-10.93629214)
4.1059e-05 TDB
period 1392.022804482269
3.81
8.2251e-06
2.252e-08
d
yr
n .2586164528632803 1.5281e-09 deg/d
Q 2.922074725384169 1.1511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      8457 days (23.15 yr)  
   first obs. used      1996-02-14  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57427  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:26:30  

Additional Information
 Earth MOID = .961899 au 
 Jupiter MOID = 2.52623 au 
 T_jup = 3.474 
[ 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 16.0   n/a MPO280702  

136997 (1998 SP72)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 SP72 = 1998 UR37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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