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123397 (2000 WB78)
Classification: Main-belt Asteroid          SPK-ID: 2123397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2289802412209653 8.5036e-08  
a 2.584469824124434 2.3783e-08 au
q 1.992677300368116 2.3398e-07 au
i 3.930277819191981 6.3623e-06 deg
node 302.8210981178481 6.808e-05 deg
peri 24.20885701908049 6.8682e-05 deg
M 318.5091312984815 1.0201e-05 deg
tp 2459175.406380488551
(2020-Nov-21.90638049)
4.4559e-05 TDB
period 1517.594086276001
4.15
2.0948e-05
5.735e-08
d
yr
n .2372175822610104 3.2745e-09 deg/d
Q 3.176262347880753 2.9229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      9635 days (26.38 yr)  
   first obs. used      1994-03-07  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:35:33  

Additional Information
 Earth MOID = .981804 au 
 Jupiter MOID = 2.17708 au 
 T_jup = 3.382 
[ 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 15.7   n/a MPO432728  

123397 (2000 WB78)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ 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
2077-Dec-04 21:59 00:06 Hygie 0.00169484078577079 0.00168491807939176 0.00170477904481489 2.85363576859375 2.8536277799034 2480007.416175289 6.37976207210082 556.258249334102 53.9726851540793 27.622782339266 2203.79360086771 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 17:35:34 2020-Nov-12 17:35
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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