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JPL Small-Body Database Browser
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58587 (1997 SK23)
Classification: Main-belt Asteroid          SPK-ID: 2058587
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1523108975117653 5.5706e-08  
a 2.433923506200295 1.2389e-08 au
q 2.063210432495945 1.3658e-07 au
i 1.381106669242425 5.5097e-06 deg
node 352.1837418557923 0.00018375 deg
peri 27.89948263482076 0.00018426 deg
M 349.8252493112331 1.2594e-05 deg
tp 2459039.699460525488
4.8574e-05 TDB
period 1386.943643224148
n .2595635386908214 1.9818e-09 deg/d
Q 2.804636579904644 1.4276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      9422 days (25.80 yr)  
   first obs. used      1993-08-15  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54957  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:32:48  

Additional Information
 Earth MOID = 1.06572 au 
 Jupiter MOID = 2.65654 au 
 T_jup = 3.489 
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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 16.6   n/a MPO436191  
diameter diameter 2.306 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.43 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.040   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

58587 (1997 SK23)          Discovered 1997-Sep-29 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2006-Oct-20 10:03 < 00:01 Juno 0.0147851499576433 0.0147835760471192 0.0147867239701385 5.22068764550055 5.22068748788737 2454028.918842554 0.571463340546069 109.389828667876 46.7874814004557 -50.4493602576176 38633.7093071038 T 12 CATAB v2.0f-lin.ifort 2020-Feb-23 12:33:03 2020-Feb-23 12:33

Alternate Designations
 1997 SK23 = 2001 VX39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Jun-03 19:46 UT
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