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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03895240099667461 5.3725e-08  
a 2.799201226950105 1.9321e-08 au
q 2.690165618287561 1.5079e-07 au
i 4.137626842631664 5.2743e-06 deg
node 20.57114047191942 6.7395e-05 deg
peri 137.27828166443 8.6295e-05 deg
M 66.70874633933227 5.2708e-05 deg
tp 2458883.521442374369
(2020-Feb-04.02144237)
0.00025057 TDB
period 1710.604486025926
4.68
1.7711e-05
4.849e-08
d
yr
n .2104519209091703 2.1789e-09 deg/d
Q 2.908236835612649 2.0074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      9367 days (25.65 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:01  

Additional Information
 Earth MOID = 1.6996 au 
 Jupiter MOID = 2.05963 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 15.74   n/a E2021B55  

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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