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249367 (2008 YD171)
Classification: Main-belt Asteroid          SPK-ID: 2249367
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1326559294918075 7.2206e-08  
a 2.22110775153199 2.2191e-08 au
q 1.926464638251055 1.6914e-07 au
i 5.458004428143954 6.531e-06 deg
node 312.2172437300684 6.2415e-05 deg
peri 274.3249362250605 6.736e-05 deg
M 61.00894671452553 2.7294e-05 deg
tp 2458795.599086322711
(2019-Nov-08.09908632)
9.0473e-05 TDB
period 1209.073962036812
3.31
1.812e-05
4.961e-08
d
yr
n .2977485342530594 4.4622e-09 deg/d
Q 2.515750864812925 2.5135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      4813 days (13.18 yr)  
   first obs. used      2006-01-06  
   last obs. used      2019-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55845  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:22:18  

Additional Information
 Earth MOID = .926207 au 
 Jupiter MOID = 2.49638 au 
 T_jup = 3.632 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457207.5 (2015-Jul-04.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1326775237651634 7.217e-08  
q 1.925808069563339 1.6885e-07 au
tp 2457586.354342244628
(2016-Jul-16.85434224)
8.5259e-05 TDB
node 312.2597840772225 6.2404e-05 deg
peri 274.2047178383577 6.7339e-05 deg
i 5.459114649315493 6.5312e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      4813 days (13.18 yr)  
   first obs. used      2006-01-06  
   last obs. used      2019-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55845  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:22:18  

Additional Information
 Jupiter MOID = 2.49638 au 
 T_jup = 3.632 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.208459212516456E-15 -1.212076949266302E-14 -2.950415802162254E-12 2.057169262258748E-14 -6.501582204259089E-13 -6.513215249714082E-15
q -1.212076949266302E-14 2.851152140596091E-14 6.856650706884318E-12 -4.627624273191106E-14 1.482373887888977E-12 1.584544165230872E-14
tp -2.950415802162254E-12 6.856650706884318E-12 7.26917795317311E-9 -2.310984557309198E-11 2.162353211157252E-9 7.147792869529617E-12
node 2.057169262258748E-14 -4.627624273191106E-14 -2.310984557309198E-11 3.894292502592856E-9 -3.882872355860798E-9 1.68414785258639E-10
peri -6.501582204259089E-13 1.482373887888977E-12 2.162353211157252E-9 -3.882872355860798E-9 4.534584210264103E-9 -1.659030370158111E-10
i -6.513215249714082E-15 1.584544165230872E-14 7.147792869529617E-12 1.68414785258639E-10 -1.659030370158111E-10 4.265636008493521E-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 17.1   n/a MPO433634  

249367 (2008 YD171)          Discovered 2008-Dec-22 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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