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213407 (2001 WQ23)
Classification: Main-belt Asteroid          SPK-ID: 2213407
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0980121850754012 6.5047e-08  
a 3.060922207669762 3.0666e-08 au
q 2.760914533750228 2.017e-07 au
i 1.205791106003314 7.3865e-06 deg
node 38.27464253957918 0.00029895 deg
peri 3.358976834659757 0.00030101 deg
M 215.3288117291278 3.7986e-05 deg
tp 2459986.561296129464
(2023-Feb-11.06129613)
0.0002133 TDB
period 1956.036098056866
5.36
2.9395e-05
8.048e-08
d
yr
n .1840456831842855 2.7658e-09 deg/d
Q 3.360929881589297 3.3672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      9006 days (24.66 yr)  
   first obs. used      1995-09-17  
   last obs. used      2020-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64042  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:42:34  

Additional Information
 Earth MOID = 1.76822 au 
 Jupiter MOID = 2.009 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457056.5 (2015-Feb-03.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09854765984455438 6.4813e-08  
q 2.75897573465412 2.0069e-07 au
tp 2456079.483736142996
(2012-May-31.98373614)
0.00018434 TDB
node 38.29419793647354 0.0002988 deg
peri 4.327138988897266 0.00030086 deg
i 1.206258655274115 7.3877e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      9006 days (24.66 yr)  
   first obs. used      1995-09-17  
   last obs. used      2020-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64042  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:42:34  

Additional Information
 Jupiter MOID = 2.009 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.200752691669935E-15 -1.288253887254749E-14 -2.728132216336157E-12 2.421645813764613E-14 -4.826640353036397E-13 -5.278049457697962E-16
q -1.288253887254749E-14 4.027638387453264E-14 1.017820823523608E-11 -7.659607667521509E-14 1.887045809209244E-12 2.182980225132278E-15
tp -2.728132216336157E-12 1.017820823523608E-11 3.398084197073086E-8 -3.32656908355749E-11 6.506920632498996E-9 3.118746765851294E-12
node 2.421645813764613E-14 -7.659607667521509E-14 -3.32656908355749E-11 8.928308285159904E-8 -8.926900429955319E-8 -4.729229923069191E-10
peri -4.826640353036397E-13 1.887045809209244E-12 6.506920632498996E-9 -8.926900429955319E-8 9.051656802591817E-8 4.734615998958953E-10
i -5.278049457697962E-16 2.182980225132278E-15 3.118746765851294E-12 -4.729229923069191E-10 4.734615998958953E-10 5.457803966758327E-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 16.37   n/a E2021B55  

213407 (2001 WQ23)          Discovered 2001-Nov-17 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2001 WQ23 = 2006 RH56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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