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85543 (1997 WP46)
Classification: Main-belt Asteroid          SPK-ID: 2085543
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2075040476652571 3.1109e-08  
a 2.67999629810574 1.0873e-08 au
q 2.123886218520894 8.2795e-08 au
i .3984573519204295 4.298e-06 deg
node 277.649409662363 0.00063303 deg
peri 129.6982150029159 0.00063317 deg
M 57.71425977460608 1.1878e-05 deg
tp 2458743.590391565731
(2019-Sep-17.09039157)
5.2668e-05 TDB
period 1602.506198598612
4.39
9.7526e-06
2.67e-08
d
yr
n .2246481170024922 1.3672e-09 deg/d
Q 3.236106377690586 1.313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      9542 days (26.12 yr)  
   first obs. used      1993-12-17  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:34:08  

Additional Information
 Earth MOID = 1.13379 au 
 Jupiter MOID = 2.15743 au 
 T_jup = 3.346 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456707.5 (2014-Feb-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049398605288083 3.0903e-08  
q 2.132040281667678 8.1988e-08 au
tp 2457136.852050845545
(2015-Apr-24.35205085)
5.4178e-05 TDB
node 278.8298505395837 0.00063301 deg
peri 127.9299960062648 0.00063315 deg
i .396571587849838 4.3208e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      9542 days (26.12 yr)  
   first obs. used      1993-12-17  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:34:08  

Additional Information
 Jupiter MOID = 2.15743 au 
 T_jup = 3.346 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.549902008266962E-16 -2.519752489831203E-15 -2.168685654920654E-13 4.279074098621395E-16 -7.207547089687109E-14 -2.831939750167811E-17
q -2.519752489831203E-15 6.722025187866583E-15 5.572211378571601E-13 1.145840854147647E-15 1.777630883349924E-13 1.128366666146975E-16
tp -2.168685654920654E-13 5.572211378571601E-13 2.935246500404296E-9 -6.680068114664776E-12 7.53637384066829E-10 1.142666165757071E-13
node 4.279074098621395E-16 1.145840854147647E-15 -6.680068114664776E-12 4.00698977358986E-7 -4.006909937650031E-7 8.765025861209153E-10
peri -7.207547089687109E-14 1.777630883349924E-13 7.53637384066829E-10 -4.006909937650031E-7 4.008827405303309E-7 -8.764588667561811E-10
i -2.831939750167811E-17 1.128366666146975E-16 1.142666165757071E-13 8.765025861209153E-10 -8.764588667561811E-10 1.866906131100186E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO453286  

85543 (1997 WP46)          Discovered 1997-Nov-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 WP46 = 2001 QY211 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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