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66031 (1998 QE68)
Classification: Main-belt Asteroid          SPK-ID: 2066031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1737528758206509 3.0241e-08  
a 2.685016503322113 1.2798e-08 au
q 2.218487164243987 7.9312e-08 au
i 10.6372107841476 3.2587e-06 deg
node 238.6847059485276 2.2881e-05 deg
peri 47.5293592974911 2.735e-05 deg
M 59.12780309326342 1.2982e-05 deg
tp 2458936.558240056139
(2020-Mar-28.05824006)
5.8397e-05 TDB
period 1607.011060937182
4.40
1.1489e-05
3.146e-08
d
yr
n .2240183709688059 1.6016e-09 deg/d
Q 3.151545842400238 1.5021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1242  
   data-arc span      10060 days (27.54 yr)  
   first obs. used      1993-05-23  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:18:46  

Additional Information
 Earth MOID = 1.21597 au 
 Jupiter MOID = 2.02271 au 
 T_jup = 3.328 
[ 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 14.81   n/a E2021B10  
diameter diameter 6.529 km 0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66031 (1998 QE68)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QE68 = 2001 BF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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