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46072 (2001 EJ)
Classification: Main-belt Asteroid          SPK-ID: 2046072
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1456209924326337 3.4318e-08  
a 3.19056646478934 2.4825e-08 au
q 2.725953009764436 1.1207e-07 au
i 8.385032023398225 5.5455e-06 deg
node 176.0212119812644 2.6142e-05 deg
peri 77.67109766460678 3.2172e-05 deg
M 73.53413796971023 1.8639e-05 deg
tp 2458575.306491059155
(2019-Apr-01.80649106)
0.00010639 TDB
period 2081.613621169473
5.70
2.4295e-05
6.652e-08
d
yr
n .1729427576467087 2.0185e-09 deg/d
Q 3.655179919814243 2.8441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1015  
   data-arc span      8363 days (22.90 yr)  
   first obs. used      1997-09-06  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:19:49  

Additional Information
 Earth MOID = 1.72785 au 
 Jupiter MOID = 1.46 au 
 T_jup = 3.164 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456423.5 (2013-May-11.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1445875468890729 3.415e-08  
q 2.731659053979362 1.1143e-07 au
tp 2456498.147780753580
(2013-Jul-24.64778075)
0.00010497 TDB
node 176.1484663728479 2.6127e-05 deg
peri 78.73323872766595 3.2294e-05 deg
i 8.3843800267713 5.5461e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1015  
   data-arc span      8363 days (22.90 yr)  
   first obs. used      1997-09-06  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:19:49  

Additional Information
 Jupiter MOID = 1.46 au 
 T_jup = 3.164 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.166217091666792E-15 -3.735976665433988E-15 -6.257768959358517E-13 3.441963882911761E-15 -1.238501633658637E-13 -1.838483099469742E-15
q -3.735976665433988E-15 1.241733853969364E-14 1.997903660172725E-12 -1.0113802182484E-14 3.908477521572936E-13 6.601753729284377E-15
tp -6.257768959358517E-13 1.997903660172725E-12 1.101794629018205E-8 -9.004883357869082E-12 2.005946293563049E-9 1.704190218141185E-12
node 3.441963882911761E-15 -1.0113802182484E-14 -9.004883357869082E-12 6.826339714340122E-10 -6.766464301686928E-10 7.171565071589512E-12
peri -1.238501633658637E-13 3.908477521572936E-13 2.005946293563049E-9 -6.766464301686928E-10 1.042890654357427E-9 -6.760170883722929E-12
i -1.838483099469742E-15 6.601753729284377E-15 1.704190218141185E-12 7.171565071589512E-12 -6.760170883722929E-12 3.075912939212237E-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 13.7   n/a MPO493176  
diameter diameter 10.564 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46072 (2001 EJ)          Discovered 2001-Mar-02 by Yeung, W. K. Y. at Desert Beaver
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2001 EJ = 1997 RF13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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