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259664 (2003 WH138)
Classification: Main-belt Asteroid          SPK-ID: 2259664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077612808286501 7.3517e-08  
a 2.287299885338872 1.091e-08 au
q 2.040817520055531 1.7283e-07 au
i 10.22213899813304 5.2496e-06 deg
node 258.6506855829167 3.4723e-05 deg
peri 146.7366937568117 4.1888e-05 deg
M 357.4024871335068 2.2412e-05 deg
tp 2459209.616713267231
(2020-Dec-26.11671327)
7.8672e-05 TDB
period 1263.522817746142
3.46
9.0402e-06
2.475e-08
d
yr
n .2849176880257407 2.0385e-09 deg/d
Q 2.533782250622213 1.2086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      8776 days (24.03 yr)  
   first obs. used      1996-12-31  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51349  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 14:02:24  

Additional Information
 Earth MOID = 1.05839 au 
 Jupiter MOID = 2.80039 au 
 T_jup = 3.572 
[ 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 16.8   n/a MPO437206  

259664 (2003 WH138)          Discovered 2003-Nov-21 by LINEAR at Socorro
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
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
2180-Oct-26 20:34 00:02 Juno 0.0439924791056809 0.0439726905617271 0.0440123270075693 6.29846363371272 6.2984635898058 2517588.357251976 1.50092000572166 2765.78692496307 164.776466817093 69.3425626052907 37366.2309551582 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:02:25 2021-Feb-24 14:02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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