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186800 (2004 EJ52)
Classification: Main-belt Asteroid          SPK-ID: 2186800
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568809849574815 3.9791e-08  
a 2.385400227792702 1.1125e-08 au
q 2.011176290538782 9.4574e-08 au
i 2.759077036798908 4.9737e-06 deg
node 38.80111947612242 8.5558e-05 deg
peri 196.9127442248081 8.6998e-05 deg
M 198.1263377732194 1.4808e-05 deg
tp 2460001.581678533874
(2023-Feb-26.08167853)
5.5993e-05 TDB
period 1345.675394475363
3.68
9.4139e-06
2.577e-08
d
yr
n .2675236550196066 1.8715e-09 deg/d
Q 2.759624165046622 1.287e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      9616 days (26.33 yr)  
   first obs. used      1994-09-08  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55491  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:52:45  

Additional Information
 Earth MOID = 1.00023 au 
 Jupiter MOID = 2.23727 au 
 T_jup = 3.517 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457548.5 (2016-Jun-09.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .156441455897094 3.9855e-08  
q 2.012657918967138 9.4686e-08 au
tp 2457310.198410174839
(2015-Oct-14.69841017)
5.595e-05 TDB
node 38.83734219554024 8.5489e-05 deg
peri 197.0072110638562 8.6934e-05 deg
i 2.760243259645923 4.9747e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      9616 days (26.33 yr)  
   first obs. used      1994-09-08  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55491  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:52:45  

Additional Information
 Jupiter MOID = 2.23727 au 
 T_jup = 3.517 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.588381776442356E-15 -3.754970137217991E-15 -9.24444654946149E-13 1.026034840321647E-14 -2.488670284480536E-13 -9.334283207126689E-16
q -3.754970137217991E-15 8.965449788275251E-15 2.119822821500991E-12 -2.549122558517279E-14 5.750140316457452E-13 2.301411719537861E-15
tp -9.24444654946149E-13 2.119822821500991E-12 3.130372438686021E-9 -7.889862874715434E-12 8.977734396524844E-10 1.72440061686666E-12
node 1.026034840321647E-14 -2.549122558517279E-14 -7.889862874715434E-12 7.308391296919141E-9 -7.301588598226534E-9 -1.507302739672748E-10
peri -2.488670284480536E-13 5.750140316457452E-13 8.977734396524844E-10 -7.301588598226534E-9 7.557601142248304E-9 1.510509899325913E-10
i -9.334283207126689E-16 2.301411719537861E-15 1.72440061686666E-12 -1.507302739672748E-10 1.510509899325913E-10 2.474805649096565E-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 17.01   n/a MPCxxxxx  

186800 (2004 EJ52)          Discovered 2004-Mar-15 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2004 EJ52 = 2001 OG4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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