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356986 (1997 SA4)
Classification: Main-belt Asteroid          SPK-ID: 2356986
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2299688145392898 5.469e-08  
a 2.245909807915134 1.1351e-08 au
q 1.729420591826726 1.2705e-07 au
i 10.53000012474329 6.669e-06 deg
node 14.14132307267358 2.8287e-05 deg
peri 323.9829795720926 3.1478e-05 deg
M 43.0021068983708 1.3985e-05 deg
tp 2459249.649940055930
(2021-Feb-04.14994006)
4.7206e-05 TDB
period 1229.382125503907
3.37
9.3204e-06
2.552e-08
d
yr
n .2928300261828201 2.2201e-09 deg/d
Q 2.762399024003541 1.3962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      8832 days (24.18 yr)  
   first obs. used      1996-03-20  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58682  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 09:18:56  

Additional Information
 Earth MOID = .733001 au 
 Jupiter MOID = 2.66833 au 
 T_jup = 3.574 
[ 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 16.91   n/a E2021B25  

356986 (1997 SA4)          Discovered 1997-Sep-26 by Pravec, P. at Ondrejov
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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