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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2578733662107273 5.0667e-08  
a 2.612237221989499 1.4392e-08 au
q 1.938610816214108 1.3559e-07 au
i 4.523918937258038 7.3137e-06 deg
node 359.0098804111591 5.3928e-05 deg
peri 245.7511316166535 5.5764e-05 deg
M 45.13057989400982 1.4477e-05 deg
tp 2458807.176005425411
(2019-Nov-19.67600543)
6.1375e-05 TDB
period 1542.117079157889
4.22
1.2745e-05
3.489e-08
d
yr
n .233445310259184 1.9293e-09 deg/d
Q 3.28586362776489 1.8104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      9146 days (25.04 yr)  
   first obs. used      1994-04-13  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56682  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:59:10  

Additional Information
 Earth MOID = .930982 au 
 Jupiter MOID = 1.77541 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456613.5 (2013-Nov-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2584466203104054 5.0977e-08  
q 1.937764331329596 1.3641e-07 au
tp 2457263.019641934010
(2015-Aug-28.51964193)
5.7281e-05 TDB
node 359.2359438399051 5.4046e-05 deg
peri 245.2765708601519 5.5822e-05 deg
i 4.519541721915984 7.304e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      9146 days (25.04 yr)  
   first obs. used      1994-04-13  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56682  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:59:10  

Additional Information
 Jupiter MOID = 1.77541 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.598623486808904E-15 -6.934423725411631E-15 -1.365968101065787E-12 8.546943948912773E-15 -2.049294215781233E-13 -4.264737322584629E-15
q -6.934423725411631E-15 1.860773948064793E-14 3.721601058427863E-12 -2.072892611807054E-14 5.517913118592093E-13 1.06278599765254E-14
tp -1.365968101065787E-12 3.721601058427863E-12 3.281092427965787E-9 -3.408336382864846E-12 7.926308271524223E-10 5.561312034874659E-12
node 8.546943948912773E-15 -2.072892611807054E-14 -3.408336382864846E-12 2.920961743778831E-9 -2.911185522199172E-9 -2.639627834255758E-11
peri -2.049294215781233E-13 5.517913118592093E-13 7.926308271524223E-10 -2.911185522199172E-9 3.116088008240078E-9 2.738933651865896E-11
i -4.264737322584629E-15 1.06278599765254E-14 5.561312034874659E-12 -2.639627834255758E-11 2.738933651865896E-11 5.334873413182346E-11

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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