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85602 (1998 FE122)
Classification: Main-belt Asteroid          SPK-ID: 2085602
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06488650326546196 3.9462e-08  
a 2.466461540749844 1.2525e-08 au
q 2.306421475931843 9.9008e-08 au
i 6.131163871658328 4.8067e-06 deg
node 14.06913613860111 3.6858e-05 deg
peri 244.6023885752548 5.3258e-05 deg
M 199.6243046807037 4.1969e-05 deg
tp 2459630.798103414291
(2022-Feb-20.29810341)
0.00016708 TDB
period 1414.848532861471
3.87
1.0777e-05
2.951e-08
d
yr
n .2544441978336122 1.9381e-09 deg/d
Q 2.626501605567845 1.3337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:35:13  

Additional Information
 Earth MOID = 1.29973 au 
 Jupiter MOID = 2.40319 au 
 T_jup = 3.476 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457035.5 (2015-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06550610269290524 3.9197e-08  
q 2.304746451911128 9.8345e-08 au
tp 2456803.936461282889
(2014-May-26.43646128)
0.00015789 TDB
node 14.09430787484459 3.6826e-05 deg
peri 245.2031278013805 5.3146e-05 deg
i 6.134798222014717 4.8077e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:35:13  

Additional Information
 Jupiter MOID = 2.40319 au 
 T_jup = 3.476 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.536412794742155E-15 -3.827739450726331E-15 -1.387750102400402E-12 -5.639316933195555E-15 -3.583570357113937E-13 -3.825636367539281E-16
q -3.827739450726331E-15 9.671815722904174E-15 4.050601495418343E-12 1.577177844357803E-14 1.039690904076109E-12 1.34151870425584E-15
tp -1.387750102400402E-12 4.050601495418343E-12 2.492923063083548E-8 8.03599402667598E-11 6.064245877002386E-9 2.662503656002712E-12
node -5.639316933195555E-15 1.577177844357803E-14 8.03599402667598E-11 1.35618306067803E-9 -1.328300315352547E-9 3.609398419413195E-11
peri -3.583570357113937E-13 1.039690904076109E-12 6.064245877002386E-9 -1.328300315352547E-9 2.824511696759933E-9 -3.520652070197136E-11
i -3.825636367539281E-16 1.34151870425584E-15 2.662503656002712E-12 3.609398419413195E-11 -3.520652070197136E-11 2.311374518295728E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO453286  

85602 (1998 FE122)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 FE122 = 2002 GK19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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