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JPL Small-Body Database Browser
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347394 (2012 SK1)
Classification: Main-belt Asteroid          SPK-ID: 2347394
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .206259225524765 8.1439e-08  
a 2.452873649581615 2.4828e-08 au
q 1.946945830308807 1.9745e-07 au
i 2.180781823417531 6.88e-06 deg
node 137.3088896078757 0.00021289 deg
peri 229.4008384354884 0.00021357 deg
M 350.4357888470294 1.93e-05 deg
tp 2459037.778450159154
(2020-Jul-07.27845016)
7.5593e-05 TDB
period 1403.172916474889
3.84
2.1304e-05
5.833e-08
d
yr
n .2565613943749765 3.8954e-09 deg/d
Q 2.958801468854422 2.9949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      190  
   data-arc span      4948 days (13.55 yr)  
   first obs. used      2006-01-07  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70025  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:33:32  

Additional Information
 Earth MOID = .946349 au 
 Jupiter MOID = 2.50164 au 
 T_jup = 3.464 
[ 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 17.4   n/a MPO437471  
rotation period rot_per 0.82 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

347394 (2012 SK1)          Discovered 2006-Jan-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2012 SK1 = 2006 AS56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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