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72574 (2001 EJ16)
Classification: Main-belt Asteroid          SPK-ID: 2072574
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06833665683911637 3.5725e-08  
a 2.793955536300146 1.4918e-08 au
q 2.603025955592254 1.0473e-07 au
i 11.93357662654041 5.8325e-06 deg
node 17.39690966997634 1.7376e-05 deg
peri 271.0290991674015 5.6524e-05 deg
M 329.6420501611491 5.5991e-05 deg
tp 2459344.345937380432
(2021-May-09.84593738)
0.00026532 TDB
period 1705.798241707466
4.67
1.3662e-05
3.74e-08
d
yr
n .211044888661421 1.6903e-09 deg/d
Q 2.984885117008039 1.5938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1041  
   data-arc span      10269 days (28.11 yr)  
   first obs. used      1992-04-30  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52945  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:02:49  

Additional Information
 Earth MOID = 1.62048 au 
 Jupiter MOID = 2.15629 au 
 T_jup = 3.293 
[ 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 14.61   n/a E2021B10  
diameter diameter 8.661 km 0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72574 (2001 EJ16)          Discovered 2001-Mar-15 by NEAT at Haleakala
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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