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85184 (1991 JG1)
Classification: Amor [NEO]          SPK-ID: 2085184
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844816116276685 3.4853e-08  
a 1.374038481722231 2.5811e-09 au
q 1.120553648175679 4.7591e-08 au
i 33.87749130280167 7.8772e-06 deg
node 226.4038582075361 4.5869e-06 deg
peri 322.7469884929312 1.3506e-05 deg
M 41.34572023535206 1.2058e-05 deg
tp 2458932.934525423096
(2020-Mar-24.43452542)
1.9772e-05 TDB
period 588.2971855183234
1.61
1.6576e-06
4.538e-09
d
yr
n .6119356149610327 1.7242e-09 deg/d
Q 1.627523315268783 3.0572e-09 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      15582 days (42.66 yr)  
   first obs. used      1978-01-09  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35341  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-13 07:26:06  

Additional Information
 Earth MOID = .146243 au 
 Jupiter MOID = 3.40038 au 
 T_jup = 4.626 
[ 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 18.3   n/a MPO426527  

85184 (1991 JG1)          Discovered 1991-May-09 by Helin, E. F. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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