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295921 (2008 WH134)
Classification: Main-belt Asteroid          SPK-ID: 2295921
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02813735182872539 7.9302e-08  
a 2.67248822647003 3.6006e-08 au
q 2.597291484983717 2.3025e-07 au
i 6.460622325279552 4.9266e-06 deg
node 111.0842079660011 7.2598e-05 deg
peri 240.325829992687 0.00012493 deg
M 341.7407083149891 0.00010389 deg
tp 2459281.438202159467
(2021-Mar-07.93820216)
0.00046083 TDB
period 1595.776730010147
4.37
3.225e-05
8.83e-08
d
yr
n .2255954691090845 4.5591e-09 deg/d
Q 2.747684967956344 3.7019e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      7121 days (19.50 yr)  
   first obs. used      2001-01-21  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52548  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:47:45  

Additional Information
 Earth MOID = 1.59362 au 
 Jupiter MOID = 2.37158 au 
 T_jup = 3.371 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457185.5 (2015-Jun-12.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02921618097479069 8.0039e-08  
q 2.593205916410353 2.3191e-07 au
tp 2457702.237180437893
(2016-Nov-09.73718044)
0.00043066 TDB
node 111.1089913805319 7.2641e-05 deg
peri 244.0859827946011 0.00012027 deg
i 6.459337281779698 4.9261e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      7121 days (19.50 yr)  
   first obs. used      2001-01-21  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52548  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:47:45  

Additional Information
 Jupiter MOID = 2.37158 au 
 T_jup = 3.371 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.406170840688295E-15 -1.840281047855958E-14 7.420379122905836E-12 9.922804361999093E-14 1.767329099119847E-12 6.465981864746696E-16
q -1.840281047855958E-14 5.37838523030014E-14 -1.731885788764673E-11 -2.857987555639273E-13 -4.2438053311357E-12 1.297895360175881E-16
tp 7.420379122905836E-12 -1.731885788764673E-11 1.854688762506319E-7 1.942623049204269E-10 4.138259748242541E-8 1.945597633846018E-11
node 9.922804361999093E-14 -2.857987555639273E-13 1.942623049204269E-10 5.276772208941338E-9 -5.1961192432923E-9 -3.981455873268267E-12
peri 1.767329099119847E-12 -4.2438053311357E-12 4.138259748242541E-8 -5.1961192432923E-9 1.446524521369478E-8 8.126074324393281E-12
i 6.465981864746696E-16 1.297895360175881E-16 1.945597633846018E-11 -3.981455873268267E-12 8.126074324393281E-12 2.426631378811119E-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 16.18   n/a E2021B55  

295921 (2008 WH134)          Discovered 2008-Nov-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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