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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128637314977175 4.9828e-08  
a 2.43531629959399 1.415e-08 au
q 2.12204374969407 1.2109e-07 au
i 6.54606764604427 5.1912e-06 deg
node 173.2210072320527 4.0522e-05 deg
peri 197.1281527173902 4.3581e-05 deg
M 359.8337389291167 1.719e-05 deg
tp 2459001.141090826943
(2020-May-31.64109083)
6.6287e-05 TDB
period 1388.134314746575
3.80
1.2098e-05
3.312e-08
d
yr
n .2593408981937914 2.2602e-09 deg/d
Q 2.74858884949391 1.597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      10406 days (28.49 yr)  
   first obs. used      1992-05-03  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:12  

Additional Information
 Earth MOID = 1.12212 au 
 Jupiter MOID = 2.71342 au 
 T_jup = 3.485 
[ 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-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.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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