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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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 
[ 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 17.01   n/a MPCxxxxx  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2050-Feb-10 07:56 00:03 Psych 0.0358964884904691 0.0358873600103921 0.0359056170212074 3.93741129794181 3.93741121233852 2469847.830686543 2.90598105890057 459.725835623123 65.9508302101319 -8.53824661691993 16703.9620597446 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 21:52:46 2021-Apr-13 21:52

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