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57658 Nilrem (2001 UJ1)
Classification: Main-belt Asteroid          SPK-ID: 2057658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02975516087901873 5.3022e-08  
a 2.61547022873726 1.3507e-08 au
q 2.537646491306899 1.3997e-07 au
i 13.61708345654915 5.9434e-06 deg
node 33.04698881041741 1.6553e-05 deg
peri 183.7925171699278 7.2981e-05 deg
M 229.078253387122 7.0475e-05 deg
tp 2459162.365528374620
(2020-Nov-08.86552837)
0.00030157 TDB
period 1544.980841211653
4.23
1.1968e-05
3.277e-08
d
yr
n .2330125982129783 1.805e-09 deg/d
Q 2.693293966167622 1.3909e-08 au
  Orbit Determination Parameters
   # obs. used (total)      733  
   data-arc span      8738 days (23.92 yr)  
   first obs. used      1995-03-08  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54108  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:31:03  

Additional Information
 Earth MOID = 1.53103 au 
 Jupiter MOID = 2.26951 au 
 T_jup = 3.367 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO417222  

57658 Nilrem           Discovered 2001 Oct. 17 by M. Ory at Vicques.
Jean-Claude Merlin (b. 1954), a technician in process computing in Le Creusot, France, has been observing comets and asteroids for more than 30 years. He wrote many papers for astronomical magazines and several books about minor planets. He is the founder-president of the Société Astronomique de Bourgogne.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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