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66111 (1998 SY39)
Classification: Main-belt Asteroid          SPK-ID: 2066111
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05325884756253894 3.9987e-08  
a 2.350980068413241 9.8999e-09 au
q 2.225769579327053 9.7864e-08 au
i 6.829799829521403 3.8893e-06 deg
node 187.8781020169511 3.0894e-05 deg
peri 9.847585960215516 4.7108e-05 deg
M 231.6555802401876 3.7359e-05 deg
tp 2459669.903515446378
(2022-Mar-31.40351545)
0.00013765 TDB
period 1316.654560260119
3.60
8.3165e-06
2.277e-08
d
yr
n .2734202355467317 1.727e-09 deg/d
Q 2.476190557499429 1.0427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      8177 days (22.39 yr)  
   first obs. used      1998-09-23  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53038  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:19:34  

Additional Information
 Earth MOID = 1.22344 au 
 Jupiter MOID = 2.47789 au 
 T_jup = 3.546 
[ 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 15.74   n/a MPCxxxxx  

66111 (1998 SY39)          Discovered 1998-Sep-23 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SY39 = 1998 SR106 = 2000 CR43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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