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JPL Small-Body Database Browser
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(2021 ER2)
Classification: Amor [NEO]          SPK-ID: 54130764
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459283.5 (2021-Mar-10.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1973515257324987 0.00088099  
a 1.287166042494119 0.0015796 au
q 1.033141860136842 0.00013387 au
i 22.58492483802696 0.050765 deg
node 349.6324010504229 0.0033593 deg
peri 214.2408259859394 0.047122 deg
M 337.8715236089387 0.075818 deg
tp 2459316.286820227978
(2021-Apr-11.78682023)
0.051996 TDB
period 533.3966547665242
1.46
0.98184
0.002688
d
yr
n .6749198683249662 0.0012423 deg/d
Q 1.541190224851395 0.0018913 au
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      9 days  
   first obs. used      2021-03-07  
   last obs. used      2021-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .47732  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:32  

Additional Information
 Earth MOID = .0676713 au 
 Jupiter MOID = 3.45038 au 
 T_jup = 4.943 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.44   .31863 MPO606235 autocmod 2.9c

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