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85539 (1997 WG37)
Classification: Main-belt Asteroid          SPK-ID: 2085539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05217962654183021 4.1077e-08  
a 2.687525090098026 1.2495e-08 au
q 2.547291034574912 1.1455e-07 au
i 14.66799435532656 4.0337e-06 deg
node 231.1929663218746 1.41e-05 deg
peri 334.7487656379253 3.6069e-05 deg
M 348.9395321284677 3.3317e-05 deg
tp 2459445.942248807951
(2021-Aug-19.44224881)
0.00014892 TDB
period 1609.263710866554
4.41
1.1222e-05
3.072e-08
d
yr
n .223704789693013 1.56e-09 deg/d
Q 2.82775914562114 1.3147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1516  
   data-arc span      8595 days (23.53 yr)  
   first obs. used      1997-11-29  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5157  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:09:59  

Additional Information
 Earth MOID = 1.54592 au 
 Jupiter MOID = 2.1699 au 
 T_jup = 3.325 
[ 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 14.28   n/a MPO637173  
rotation period rot_per 21.960 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

85539 (1997 WG37)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 WG37 = 2001 TQ125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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