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136637 (1994 WA5)
Classification: Main-belt Asteroid          SPK-ID: 2136637
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134422138808155 6.2278e-08  
a 3.120846595591282 2.0983e-08 au
q 2.766810848605001 1.9645e-07 au
i 1.833693531103478 6.3273e-06 deg
node 46.4825655821786 0.00013801 deg
peri 146.3251228175352 0.00013966 deg
M 85.30555571313997 2.0066e-05 deg
tp 2458523.320393264075
(2019-Feb-08.82039326)
0.00011245 TDB
period 2013.75698204932
5.51
2.0309e-05
5.56e-08
d
yr
n .1787703298903735 1.8029e-09 deg/d
Q 3.474882342577564 2.3363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      8929 days (24.45 yr)  
   first obs. used      1994-11-28  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54964  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:13:09  

Additional Information
 Earth MOID = 1.76652 au 
 Jupiter MOID = 1.47998 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456713.5 (2014-Feb-25.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1110491388130869 6.1983e-08  
q 2.770480389953045 1.9363e-07 au
tp 2456507.544477085209
(2013-Aug-03.04447709)
0.00011841 TDB
node 46.58914490910639 0.00013756 deg
peri 145.177439725772 0.00013936 deg
i 1.837546222356149 6.3372e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      8929 days (24.45 yr)  
   first obs. used      1994-11-28  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54964  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:13:09  

Additional Information
 Jupiter MOID = 1.47998 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.84186865474145E-15 -1.194947205728863E-14 2.575929527611779E-12 -1.579535579646657E-14 5.898426734736745E-13 -5.995753355343009E-16
q -1.194947205728863E-14 3.749431024695296E-14 -8.393861651793207E-12 4.405476566984838E-14 -1.891357391777138E-12 1.859826719224657E-15
tp 2.575929527611779E-12 -8.393861651793207E-12 1.402097903751516E-8 -1.862596243675606E-11 2.649236161036637E-9 8.866516159869812E-13
node -1.579535579646657E-14 4.405476566984838E-14 -1.862596243675606E-11 1.892263629791111E-8 -1.891719812973473E-8 -1.688088486821118E-10
peri 5.898426734736745E-13 -1.891357391777138E-12 2.649236161036637E-9 -1.891719812973473E-8 1.942055873701479E-8 1.688623664733292E-10
i -5.995753355343009E-16 1.859826719224657E-15 8.866516159869812E-13 -1.688088486821118E-10 1.688623664733292E-10 4.016062154186622E-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 15.5   n/a MPO436673  
rotation period rot_per 5.06 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.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]

136637 (1994 WA5)          Discovered 1994-Nov-28 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1994 WA5 = 2002 CZ99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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