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192444 (1997 WY9)
Classification: Main-belt Asteroid          SPK-ID: 2192444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690820318070797 4.5578e-08  
a 2.40495258431578 1.2197e-08 au
q 1.998318314959981 1.1287e-07 au
i 2.367647912412548 6.3864e-06 deg
node 111.5136516706906 0.00015089 deg
peri 294.4415821384205 0.00015343 deg
M 73.68831804466147 2.719e-05 deg
tp 2458921.660466610308
(2020-Mar-13.16046661)
0.00010181 TDB
period 1362.254352982367
3.73
1.0363e-05
2.837e-08
d
yr
n .2642678287001664 2.0103e-09 deg/d
Q 2.811586853671579 1.4259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      8531 days (23.36 yr)  
   first obs. used      1997-11-21  
   last obs. used      2021-03-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:19:53  

Additional Information
 Earth MOID = 1.00832 au 
 Jupiter MOID = 2.5717 au 
 T_jup = 3.503 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457593.5 (2016-Jul-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690293148583253 4.6012e-08  
q 1.998165915189841 1.1411e-07 au
tp 2457556.323090494573
(2016-Jun-16.82309049)
9.6605e-05 TDB
node 111.5834760367869 0.00015121 deg
peri 293.6819953213155 0.00015373 deg
i 2.366300427559018 6.3802e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      8531 days (23.36 yr)  
   first obs. used      1997-11-21  
   last obs. used      2021-03-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:19:53  

Additional Information
 Jupiter MOID = 2.5717 au 
 T_jup = 3.503 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.117101213087471E-15 -5.230919065482635E-15 -1.557178264209651E-12 -1.268621660091256E-14 -3.822459207920282E-13 -2.335109033532416E-15
q -5.230919065482635E-15 1.302159927689036E-14 4.199769764938086E-12 2.97958128109319E-14 1.044918190470558E-12 5.988228247162049E-15
tp -1.557178264209651E-12 4.199769764938086E-12 9.332573060744115E-9 -3.52485651912965E-11 2.714082346859373E-9 3.652145207062362E-12
node -1.268621660091256E-14 2.97958128109319E-14 -3.52485651912965E-11 2.28656177900867E-8 -2.285594008761132E-8 4.132246872219645E-10
peri -3.822459207920282E-13 1.044918190470558E-12 2.714082346859373E-9 -2.285594008761132E-8 2.363407367252511E-8 -4.119159422070454E-10
i -2.335109033532416E-15 5.988228247162049E-15 3.652145207062362E-12 4.132246872219645E-10 -4.119159422070454E-10 4.070694091774904E-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 17.46   n/a MPCxxxxx  

192444 (1997 WY9)          Discovered 1997-Nov-21 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1997 WY9 = 2006 BQ181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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