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469356 (2001 DR8)
Classification: Apollo [NEO]          SPK-ID: 2469356
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6718091246756972 5.9888e-08  
a 1.925705671715909 2.1902e-08 au
q .6319990300174186 1.1756e-07 au
i 6.560465956745626 1.3593e-05 deg
node 334.4899738205019 6.1122e-05 deg
peri 43.62045131094507 7.7391e-05 deg
M 131.5631018573189 4.8962e-05 deg
tp 2458643.790320211072
(2019-Jun-09.29032021)
0.00012952 TDB
period 976.0752286251335
2.67
1.6652e-05
4.559e-08
d
yr
n .3688240306098986 6.2922e-09 deg/d
Q 3.219412313414399 3.6616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      5873 days (16.08 yr)  
   first obs. used      2001-02-16  
   last obs. used      2017-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58846  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:19:17  

Additional Information
 Earth MOID = .0781114 au 
 Jupiter MOID = 2.28232 au 
 T_jup = 3.597 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456526.5 (2013-Aug-22.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6724193353446533 6.0112e-08  
q .6306115552294631 1.1722e-07 au
tp 2456692.672708879785
(2014-Feb-04.17270888)
0.00013216 TDB
node 334.7698938675093 6.0946e-05 deg
peri 43.33836068731199 7.7102e-05 deg
i 6.58131251785267 1.3621e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      5873 days (16.08 yr)  
   first obs. used      2001-02-16  
   last obs. used      2017-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58846  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:19:17  

Additional Information
 Jupiter MOID = 2.28232 au 
 T_jup = 3.597 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.613480252312519E-15 -7.037776341517882E-15 -4.82476129350594E-13 7.88461386937081E-14 -4.506875222218115E-13 2.066024751088036E-14
q -7.037776341517882E-15 1.374029682270488E-14 7.31817204252629E-13 -1.41262383351981E-13 8.099830611807812E-13 -4.345901484322418E-14
tp -4.82476129350594E-13 7.31817204252629E-13 1.746722844470252E-8 -1.866522380416989E-9 6.509479552819703E-9 6.306321419884587E-10
node 7.88461386937081E-14 -1.41262383351981E-13 -1.866522380416989E-9 3.714472105824523E-9 -4.185896044157584E-9 -2.781695683407474E-10
peri -4.506875222218115E-13 8.099830611807812E-13 6.509479552819703E-9 -4.185896044157584E-9 5.944793418486246E-9 4.416671898160674E-10
i 2.066024751088036E-14 -4.345901484322418E-14 6.306321419884587E-10 -2.781695683407474E-10 4.416671898160674E-10 1.855406895783855E-10

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 18.8   n/a MPO402882  

469356 (2001 DR8)          Discovered 2001-Feb-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22

[ show close-approach data ]
Alternate Designations
 2001 DR8 = 2016 LU50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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