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469909 (2005 YR42)
Classification: Main-belt Asteroid          SPK-ID: 2469909
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403195738011414 9.9991e-08  
a 2.629869139774403 3.058e-08 au
q 2.260847022928485 2.6178e-07 au
i 11.74299927977567 9.1161e-06 deg
node 282.298184567648 4.7161e-05 deg
peri 259.7454939066075 5.9981e-05 deg
M 80.83977854941755 3.3032e-05 deg
tp 2458650.698031149803
(2019-Jun-16.19803115)
0.00014244 TDB
period 1557.756726276659
4.26
2.717e-05
7.439e-08
d
yr
n .2311015538738644 4.0308e-09 deg/d
Q 2.998891256620322 3.487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      4814 days (13.18 yr)  
   first obs. used      2005-12-24  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64098  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:14:31  

Additional Information
 Earth MOID = 1.29964 au 
 Jupiter MOID = 2.14061 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457467.5 (2016-Mar-20.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402548344109159 1.0006e-07  
q 2.259422733638953 2.6211e-07 au
tp 2457092.182585864102
(2015-Mar-10.68258586)
0.00014242 TDB
node 282.3243534986746 4.7178e-05 deg
peri 259.2117636836418 5.9963e-05 deg
i 11.74276631586186 9.1142e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      4814 days (13.18 yr)  
   first obs. used      2005-12-24  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64098  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:14:31  

Additional Information
 Jupiter MOID = 2.14061 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.001243011671368E-14 -2.609589967040089E-14 -4.782478738211502E-12 -1.113628927144481E-13 -9.574598120635475E-13 -6.906057370454511E-14
q -2.609589967040089E-14 6.870427252799594E-14 1.215857195169563E-11 2.938282291987982E-13 2.452111945007819E-12 1.819315567356374E-13
tp -4.782478738211502E-12 1.215857195169563E-11 2.028306685942438E-8 5.294806515325956E-11 5.346036902950648E-9 3.625212675430861E-11
node -1.113628927144481E-13 2.938282291987982E-13 5.294806515325956E-11 2.225753304009195E-9 -2.168879342503722E-9 1.757422779408633E-10
peri -9.574598120635475E-13 2.452111945007819E-12 5.346036902950648E-9 -2.168879342503722E-9 3.595573882771495E-9 -1.64266175246525E-10
i -6.906057370454511E-14 1.819315567356374E-13 3.625212675430861E-11 1.757422779408633E-10 -1.64266175246525E-10 8.306835843502391E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO434692  

469909 (2005 YR42)          Discovered 2005-Dec-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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