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85757 (1998 SN157)
Classification: Main-belt Asteroid          SPK-ID: 2085757
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04788698575233027 3.7375e-08  
a 2.56131854782842 1.2905e-08 au
q 2.438664723021382 9.2896e-08 au
i 5.006290701976427 4.4994e-06 deg
node 231.2304176251138 4.7003e-05 deg
peri 224.8598369039828 6.7941e-05 deg
M 116.5624441676075 4.8907e-05 deg
tp 2458911.714118555630
(2020-Mar-03.21411856)
0.00020331 TDB
period 1497.248265221887
4.10
1.1316e-05
3.098e-08
d
yr
n .2404410867336349 1.8172e-09 deg/d
Q 2.683972372635459 1.3523e-08 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      8292 days (22.70 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53421  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:55  

Additional Information
 Earth MOID = 1.45835 au 
 Jupiter MOID = 2.40594 au 
 T_jup = 3.428 
[ 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 15.65   n/a MPO637176  

85757 (1998 SN157)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SN157 = 2000 CP32 = 2003 YZ178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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