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73000 (2002 ER20)
Classification: Main-belt Asteroid          SPK-ID: 2073000
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1020421171265806 3.6123e-08  
a 2.602494436150209 1.1939e-08 au
q 2.336930394075295 9.2451e-08 au
i 5.579459911064859 3.8947e-06 deg
node 151.662192612419 4.6556e-05 deg
peri 115.0915971501107 5.1511e-05 deg
M 109.2974336595653 2.2185e-05 deg
tp 2458734.923977911585
(2019-Sep-08.42397791)
9.4759e-05 TDB
period 1533.497744090546
4.20
1.0552e-05
2.889e-08
d
yr
n .2347574369687131 1.6154e-09 deg/d
Q 2.868058478225123 1.3157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      10647 days (29.15 yr)  
   first obs. used      1991-11-13  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57238  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:05:13  

Additional Information
 Earth MOID = 1.32593 au 
 Jupiter MOID = 2.21255 au 
 T_jup = 3.400 
[ 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 15.46   n/a MPCxxxxx  

73000 (2002 ER20)          Discovered 2002-Mar-09 by LINEAR at Socorro
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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