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66020 (1998 QN31)
Classification: Main-belt Asteroid          SPK-ID: 2066020
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .229850940896226 3.513e-08  
a 2.350767565978033 8.9083e-09 au
q 1.810441429109651 8.1349e-08 au
i 3.028645642094501 4.9344e-06 deg
node 51.03810177924933 7.1297e-05 deg
peri 284.7477809229614 7.2212e-05 deg
M 65.93351075740985 1.0484e-05 deg
tp 2458959.389200924890
(2020-Apr-19.88920092)
3.7786e-05 TDB
period 1316.476047914447
3.60
7.4832e-06
2.049e-08
d
yr
n .2734573109554935 1.5544e-09 deg/d
Q 2.891093702846415 1.0956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      10688 days (29.26 yr)  
   first obs. used      1991-10-13  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56055  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:18:38  

Additional Information
 Earth MOID = .801958 au 
 Jupiter MOID = 2.49652 au 
 T_jup = 3.520 
[ 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 16.79   n/a E2021B10  

66020 (1998 QN31)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QN31 = 2001 HH39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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