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JPL Small-Body Database Browser
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55388 (2001 SN276)
Classification: Main-belt Asteroid          SPK-ID: 2055388
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1724873637014311 3.3909e-08  
a 2.239373661104367 8.6219e-09 au
q 1.853110001958052 7.4023e-08 au
i 7.72644465929676 3.6334e-06 deg
node 101.2001711701589 3.091e-05 deg
peri 239.9567922293958 3.3227e-05 deg
M 201.4962628498871 1.2131e-05 deg
tp 2459539.421216214241
(2021-Nov-20.92121621)
4.2056e-05 TDB
period 1224.019328032535
3.35
7.069e-06
1.935e-08
d
yr
n .2941130027567922 1.6986e-09 deg/d
Q 2.625637320250681 1.0109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      777  
   data-arc span      8427 days (23.07 yr)  
   first obs. used      1995-12-24  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57823  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:19:52  

Additional Information
 Earth MOID = .858029 au 
 Jupiter MOID = 2.76663 au 
 T_jup = 3.604 
[ 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 15.9   n/a MPO459231  

55388 (2001 SN276)          Discovered 2001-Sep-21 by NEAT at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 SN276 = 1998 WN45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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