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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02885793536818929 7.9427e-08  
a 2.673833548044265 3.5911e-08 au
q 2.596672232329507 2.3055e-07 au
i 6.460776927257738 4.9295e-06 deg
node 111.0855518718095 7.3669e-05 deg
peri 240.4400993532283 0.00012439 deg
M 296.5820989538646 0.00010253 deg
tp 2459281.825657201851
(2021-Mar-08.32565720)
0.00045603 TDB
period 1596.98184458973
4.37
3.2172e-05
8.808e-08
d
yr
n .2254252302364058 4.5413e-09 deg/d
Q 2.750994863759022 3.6947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      6707 days (18.36 yr)  
   first obs. used      2001-01-21  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53777  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:20  

Additional Information
 Earth MOID = 1.59503 au 
 Jupiter MOID = 2.37314 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457173.5 (2015-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02921376032799739 8.0288e-08  
q 2.593195151229799 2.3231e-07 au
tp 2457702.312781406126
(2016-Nov-09.81278141)
0.00043482 TDB
node 111.1088943171657 7.3738e-05 deg
peri 244.1035652051002 0.00012159 deg
i 6.459345163681006 4.9284e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      6707 days (18.36 yr)  
   first obs. used      2001-01-21  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53777  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:20  

Additional Information
 Jupiter MOID = 2.37314 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.446229740531235E-15 -1.84866826135305E-14 7.727668037981613E-12 1.024677013321599E-13 1.82959725204696E-12 7.227311454216859E-16
q -1.84866826135305E-14 5.396715576475858E-14 -1.786044228811454E-11 -2.946264998074628E-13 -4.350080025188125E-12 2.599950998556648E-18
tp 7.727668037981613E-12 -1.786044228811454E-11 1.890723455213907E-7 2.054142803617894E-10 4.214321236597375E-8 2.038925919144723E-11
node 1.024677013321599E-13 -2.946264998074628E-13 2.054142803617894E-10 5.437276372295906E-9 -5.353058714677981E-9 -4.306164927368692E-12
peri 1.82959725204696E-12 -4.350080025188125E-12 4.214321236597375E-8 -5.353058714677981E-9 1.478392302126202E-8 8.647855655536498E-12
i 7.227311454216859E-16 2.599950998556648E-18 2.038925919144723E-11 -4.306164927368692E-12 8.647855655536498E-12 2.42895188152887E-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 16.0   n/a MPO433907  

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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