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85756 (1998 SD157)
Classification: Main-belt Asteroid          SPK-ID: 2085756
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09574544759284501 4.4541e-08  
a 2.842241054644339 1.4949e-08 au
q 2.570109412700657 1.3035e-07 au
i 1.988258708113072 4.6579e-06 deg
node 20.00669593851718 0.00010554 deg
peri 340.6303533766165 0.00010699 deg
M 279.983507348745 1.8648e-05 deg
tp 2459785.515404958882
(2022-Jul-25.01540496)
9.1727e-05 TDB
period 1750.208502584262
4.79
1.3808e-05
3.78e-08
d
yr
n .205689778942591 1.6228e-09 deg/d
Q 3.114372696588021 1.6381e-08 au
  Orbit Determination Parameters
   # obs. used (total)      966  
   data-arc span      8293 days (22.70 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5653  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:37:57  

Additional Information
 Earth MOID = 1.56611 au 
 Jupiter MOID = 2.31402 au 
 T_jup = 3.301 
[ 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 14.92   n/a E2021B10  

85756 (1998 SD157)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SD157 = 2001 FN192 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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