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58658 (1997 WY57)
Classification: Main-belt Asteroid          SPK-ID: 2058658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1291232373780264 5.1891e-08  
a 2.436865647894804 1.5245e-08 au
q 2.122209666383325 1.2696e-07 au
i 6.544432662225485 5.3605e-06 deg
node 173.2655896570976 4.0703e-05 deg
peri 196.8527634641749 4.3739e-05 deg
M 256.4012694886376 1.7181e-05 deg
tp 2459000.350587505984
(2020-May-30.85058751)
6.7784e-05 TDB
period 1389.459222054528
3.80
1.3038e-05
3.57e-08
d
yr
n .2590936058329836 2.4313e-09 deg/d
Q 2.751521629406283 1.7213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      527  
   data-arc span      9481 days (25.96 yr)  
   first obs. used      1992-05-03  
   last obs. used      2018-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5697  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:35:43  

Additional Information
 Earth MOID = 1.12136 au 
 Jupiter MOID = 2.70684 au 
 T_jup = 3.484 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO296564  
rotation period rot_per 4.95 h n/a LCDB (Rev. 2019-January); 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.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

58658 (1997 WY57)          Discovered 1997-Nov-27 by Uppsala-DLR Trojan Survey at La Silla
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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