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JPL Small-Body Database Browser
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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 ]

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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 
[ 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 15.5   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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