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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2080042726883892 7.3708e-08  
a 2.789513990783695 2.9804e-08 AU
q 2.209283161976646 2.0957e-07 AU
i 7.534242504106315 8.4714e-06 deg
node 315.0399426188777 5.7329e-05 deg
peri 334.4140973426639 6.0924e-05 deg
M 217.3136748637681 2.5434e-05 deg
tp 2457074.983135070860
(2015-Feb-21.48313507)		 0.00012614 JED
period 1701.732302613298
4.66		 2.7273e-05
7.467e-08		 d
yr
n .2115491369865631 3.3904e-09 deg/d
Q 3.369744819590744 3.6004e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      996  
   data-arc span      19557 days (53.54 yr)  
   first obs. used      1959-09-28  
   last obs. used      2013-04-14  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .51584  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:37:56  

Additional Information
 Earth MOID = 1.19594 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 12.4 mag n/a PDS3 (MPC 33664)  
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 (402)
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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