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441364 (2008 DY81)
Classification: Main-belt Asteroid          SPK-ID: 2441364
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2307370537522119 1.0668e-07  
a 3.179571660711614 7.8929e-08 au
q 2.445926663524988 3.5042e-07 au
i 14.18703303797967 1.6669e-05 deg
node 9.899138552622745 3.9974e-05 deg
peri 224.2406442420846 5.4674e-05 deg
M 307.6668310909528 4.0491e-05 deg
tp 2458901.541164683967
(2020-Feb-22.04116468)
0.00024088 TDB
period 2070.86292585452
5.67
7.711e-05
2.111e-07
d
yr
n .173840574142033 6.4731e-09 deg/d
Q 3.913216657898239 9.7141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      4053 days (11.10 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67239  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:35:35  

Additional Information
 Earth MOID = 1.4587 au 
 Jupiter MOID = 1.24048 au 
 T_jup = 3.111 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456974.5 (2014-Nov-13.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2297944663284222 1.0703e-07  
q 2.450622088234869 3.5194e-07 au
tp 2456827.458939174513
(2014-Jun-18.95893917)
0.00019347 TDB
node 9.928250240871174 3.9963e-05 deg
peri 224.0119029256417 5.473e-05 deg
i 14.18543414036257 1.6667e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      4053 days (11.10 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67239  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:35:35  

Additional Information
 Jupiter MOID = 1.24048 au 
 T_jup = 3.111 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.145609171395271E-14 -3.710794971713185E-14 -1.073451420397452E-11 8.623928379442293E-14 -2.241301950371941E-12 -2.563366236354965E-14
q -3.710794971713185E-14 1.238648328723399E-13 4.00761107369742E-11 -3.149178362730004E-13 8.313982715248766E-12 1.29943364236464E-13
tp -1.073451420397452E-11 4.00761107369742E-11 3.743074822461707E-8 -1.161758964200318E-10 7.28531784966861E-9 1.111274861247252E-11
node 8.623928379442293E-14 -3.149178362730004E-13 -1.161758964200318E-10 1.597075979254202E-9 -1.572299451005576E-9 -1.68308302073466E-10
peri -2.241301950371941E-12 8.313982715248766E-12 7.28531784966861E-9 -1.572299451005576E-9 2.995415005135408E-9 1.68910044629977E-10
i -2.563366236354965E-14 1.29943364236464E-13 1.111274861247252E-11 -1.68308302073466E-10 1.68910044629977E-10 2.77785562508357E-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 16.1   n/a MPO392185  

441364 (2008 DY81)          Discovered 2008-Feb-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2008 DY81 = 2010 TX42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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