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226 Weringia (A882 OA)
Classification: Main-belt Asteroid          SPK-ID: 2000226
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .204127700899154 3.4075e-08  
a 2.711750860077914 6.6875e-09 au
q 2.158207391598906 9.3799e-08 au
i 15.97033242849952 3.6481e-06 deg
node 134.9509824186092 1.4386e-05 deg
peri 154.1849642652826 1.7166e-05 deg
M 323.7146425549848 9.8237e-06 deg
tp 2459164.900075105934
(2020-Nov-11.40007511)
4.4622e-05 TDB
period 1631.071903530792
4.47
6.0336e-06
1.652e-08
d
yr
n .2207137522390679 8.1646e-10 deg/d
Q 3.265294328556922 8.0526e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3096  
   data-arc span      50368 days (137.90 yr)  
   first obs. used      1882-09-08  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38176  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:12:29  

Additional Information
 Earth MOID = 1.15259 au 
 Jupiter MOID = 2.02425 au 
 T_jup = 3.278 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456314.5 (2013-Jan-22.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2033117948760247 3.4113e-08  
q 2.161211632856225 9.3632e-08 au
tp 2455893.542220000866
(2011-Nov-28.04222000)
4.3536e-05 TDB
node 135.1072658424783 1.4456e-05 deg
peri 152.8081264725091 1.716e-05 deg
i 15.92099298314857 3.6397e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3096  
   data-arc span      50368 days (137.90 yr)  
   first obs. used      1882-09-08  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38176  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:12:29  

Additional Information
 Jupiter MOID = 2.02425 au 
 T_jup = 3.278 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.16371006234884E-15 -3.189141429931425E-15 -2.161507888517792E-13 1.764327871181555E-15 -1.804596760877853E-14 -2.328282607710059E-15
q -3.189141429931425E-15 8.766932457492511E-15 5.987917066194304E-13 -2.69921669068472E-15 5.073245355732593E-14 6.693671094159564E-15
tp -2.161507888517792E-13 5.987917066194304E-13 1.895382021780139E-9 4.320550327639472E-12 4.191999557815311E-10 6.306471171646294E-12
node 1.764327871181555E-15 -2.69921669068472E-15 4.320550327639472E-12 2.089821177299053E-10 -2.000410250590435E-10 1.163380155443526E-12
peri -1.804596760877853E-14 5.073245355732593E-14 4.191999557815311E-10 -2.000410250590435E-10 2.944507578128284E-10 6.217261619955212E-14
i -2.328282607710059E-15 6.693671094159564E-15 6.306471171646294E-12 1.163380155443526E-12 6.217261619955212E-14 1.324767126741269E-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 9.8   n/a MPO473763  
diameter diameter 31.494 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.147 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Oey, J. (2008) Minor Planet Bull. 35, 132-135.]
[Oey, J. (2009) Minor Planet Bull. 36, 162-165.]
[Pilcher, F. (2013) Minor Planet Bull. 40, 85-87.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.352   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

226 Weringia (A882 OA)          Discovered 1882-Jul-19 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A882 OA = A912 CC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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