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120539 (1994 SQ5)
Classification: Main-belt Asteroid          SPK-ID: 2120539
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03910887670712129 5.3736e-08  
a 2.799606858420445 1.9433e-08 au
q 2.690117378966069 1.5097e-07 au
i 4.137387539824359 5.274e-06 deg
node 20.57125029622152 6.7548e-05 deg
peri 137.3466242011956 8.6303e-05 deg
M 24.54538492871554 5.2567e-05 deg
tp 2458883.842854209757
(2020-Feb-04.34285421)
0.00024988 TDB
period 1710.976324325469
4.68
1.7814e-05
4.877e-08
d
yr
n .2104061843999656 2.1907e-09 deg/d
Q 2.909096337874821 2.0193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      9334 days (25.56 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54781  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:38:36  

Additional Information
 Earth MOID = 1.69985 au 
 Jupiter MOID = 2.05976 au 
 T_jup = 3.321 
[ 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 15.6   n/a MPO426760  

120539 (1994 SQ5)          Discovered 1994-Sep-28 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1994 SQ5 = 2001 CD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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