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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 ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077612817302908 7.3517e-08  
a 2.287299883493782 1.091e-08 au
q 2.040817516346948 1.7283e-07 au
i 10.22213899283071 5.2496e-06 deg
node 258.6506855660275 3.4723e-05 deg
peri 146.7366943522322 4.1888e-05 deg
M 357.4024867194431 2.2412e-05 deg
tp 2459209.616714709475
(2020-Dec-26.11671471)
7.8672e-05 TDB
period 1263.522816217278
3.46
9.0402e-06
2.475e-08
d
yr
n .2849176883704914 2.0385e-09 deg/d
Q 2.533782250640617 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51346  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:49:08  

Additional Information
 Earth MOID = 1.05839 au 
 Jupiter MOID = 2.80039 au 
 T_jup = 3.572 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458252.5 (2018-May-14.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087824099937626 7.3905e-08  
q 2.038339930290852 1.7393e-07 au
tp 2457943.994878298395
(2017-Jul-09.49487830)
7.5766e-05 TDB
node 258.6653923013448 3.4717e-05 deg
peri 146.2351662902328 4.1636e-05 deg
i 10.22367357973107 5.2554e-06 deg
  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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51346  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:49:08  

Additional Information
 Jupiter MOID = 2.80039 au 
 T_jup = 3.572 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.462006067895856E-15 -1.283832119650356E-14 -2.245691539916966E-12 1.219137428271817E-14 -6.297210750111918E-13 -3.544744925011343E-14
q -1.283832119650356E-14 3.025090974324649E-14 5.19820127603692E-12 -2.73203549824492E-14 1.459141863345517E-12 8.344193934413863E-14
tp -2.245691539916966E-12 5.19820127603692E-12 5.740523270305519E-9 -1.628613298773862E-12 1.78251168332361E-9 2.102014145711399E-11
node 1.219137428271817E-14 -2.73203549824492E-14 -1.628613298773862E-12 1.205252469315626E-9 -1.186366388474143E-9 -1.036550152283107E-10
peri -6.297210750111918E-13 1.459141863345517E-12 1.78251168332361E-9 -1.186366388474143E-9 1.733537135000062E-9 1.082519021419117E-10
i -3.544744925011343E-14 8.344193934413863E-14 2.102014145711399E-11 -1.036550152283107E-10 1.082519021419117E-10 2.761898636067762E-11

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 17.00   n/a MPCxxxxx  

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 17 CATAB v2.0f-lin.ifort 2021-Apr-14 02:49:09 2021-Apr-14 02:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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