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9970 (1992 ST1)
Classification: Main-belt Asteroid          SPK-ID: 2009970
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2086750214242195 5.4982e-08  
a 2.7896225247537 1.6582e-08 au
q 2.207497984635236 1.5218e-07 au
i 7.534492957192831 6.8522e-06 deg
node 315.0294573653763 4.8045e-05 deg
peri 334.2898235136039 5.1706e-05 deg
M 111.2904768124141 1.9433e-05 deg
tp 2457074.395409976945
(2015-Feb-20.89540998)
9.1463e-05 JED
period 1701.831619677032
4.66
1.5174e-05
4.154e-08
d
yr
n .211536791206359 1.8862e-09 deg/d
Q 3.371747064872164 2.0043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1408  
   data-arc span      20583 days (56.35 yr)  
   first obs. used      1959-09-28  
   last obs. used      2016-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47146  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:37:25  

Additional Information
 Earth MOID = 1.19383 au 
 Jupiter MOID = 1.84003 au 
 T_jup = 3.285 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO347605  
SMASSII spectral type spec_B Cb   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

9970 (1992 ST1)          Discovered 1992-Sep-26 by Sugie, A. at Dynic
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 ST1 = 1959 SC = 1973 TE = 1987 SU19 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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