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305581 (2008 YU42)
Classification: Main-belt Asteroid          SPK-ID: 2305581
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07955493469823352 5.1294e-08  
a 2.21747412034372 2.5207e-08 au
q 2.041063111504752 1.1137e-07 au
i 7.030818143901515 8.1924e-06 deg
node 267.7419119390719 6.6042e-05 deg
peri 328.7411008709603 9.9148e-05 deg
M 254.4534364741899 7.313e-05 deg
tp 2458954.112707741964
(2020-Apr-14.61270774)
0.00024395 TDB
period 1206.108190874233
3.30
2.0566e-05
5.631e-08
d
yr
n .2984806858322207 5.0895e-09 deg/d
Q 2.393885129182687 2.7213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      6292 days (17.23 yr)  
   first obs. used      2001-09-18  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:55:47  

Additional Information
 Earth MOID = 1.03167 au 
 Jupiter MOID = 2.62249 au 
 T_jup = 3.638 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457061.5 (2015-Feb-08.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08002698893721488 5.1246e-08  
q 2.039785346500945 1.1136e-07 au
tp 2456542.001680921173
(2013-Sep-06.50168092)
0.00025283 TDB
node 267.795505145018 6.6041e-05 deg
peri 328.7230143228146 9.892e-05 deg
i 7.030797951168289 8.1956e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      6292 days (17.23 yr)  
   first obs. used      2001-09-18  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:55:47  

Additional Information
 Jupiter MOID = 2.62249 au 
 T_jup = 3.638 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.626155523058179E-15 -5.587041003663786E-15 2.480057905200634E-12 -6.327668984388365E-15 8.291195727540356E-13 1.925310836373886E-15
q -5.587041003663786E-15 1.23999742163391E-14 -7.387880770647379E-12 1.624688553139767E-14 -2.324927571011187E-12 -3.906625317011016E-15
tp 2.480057905200634E-12 -7.387880770647379E-12 6.392272648053354E-8 -3.191959213298535E-11 1.86709287018256E-8 3.110990302072181E-11
node -6.327668984388365E-15 1.624688553139767E-14 -3.191959213298535E-11 4.361379581248717E-9 -4.338800291341765E-9 3.107093319597938E-10
peri 8.291195727540356E-13 -2.324927571011187E-12 1.86709287018256E-8 -4.338800291341765E-9 9.785172143700428E-9 -2.994404490439238E-10
i 1.925310836373886E-15 -3.906625317011016E-15 3.110990302072181E-11 3.107093319597938E-10 -2.994404490439238E-10 6.716777192254122E-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 MPO423162  

305581 (2008 YU42)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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