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37869 (1998 FN21)
Classification: Main-belt Asteroid          SPK-ID: 2037869
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2578733786699005 3.7915e-08  
a 2.612237214613381 1.2401e-08 au
q 1.938610778193778 9.873e-08 au
i 4.523918939924938 6.937e-06 deg
node 359.0099537629054 5.0033e-05 deg
peri 245.7510599920521 5.2138e-05 deg
M 45.13058797357849 1.3558e-05 deg
tp 2458807.175971634125
(2019-Nov-19.67597163)
5.7695e-05 TDB
period 1542.117072626225
4.22
1.0981e-05
3.006e-08
d
yr
n .2334453112479457 1.6623e-09 deg/d
Q 3.285863651032983 1.5598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      9606 days (26.30 yr)  
   first obs. used      1994-04-13  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 03:23:42  

Additional Information
 Earth MOID = .930982 au 
 Jupiter MOID = 1.77541 au 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO474234  

37869 (1998 FN21)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FN21 = 1995 UP41 = 2002 AS122 = 2002 BK8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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