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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07974920731710451 5.0491e-08  
a 2.217610300540405 2.4405e-08 au
q 2.040757636934062 1.105e-07 au
i 7.030581016687148 7.5545e-06 deg
node 267.7420744255919 6.2168e-05 deg
peri 328.8740845246098 9.2626e-05 deg
M 13.73432870068665 6.5816e-05 deg
tp 2458954.481632456434
(2020-Apr-14.98163246)
0.00022075 TDB
period 1206.219297405874
3.30
1.9912e-05
5.452e-08
d
yr
n .298453192362471 4.9268e-09 deg/d
Q 2.394462964146748 2.6351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      6706 days (18.36 yr)  
   first obs. used      2001-09-18  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53461  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:01  

Additional Information
 Earth MOID = 1.03146 au 
 Jupiter MOID = 2.62158 au 
 T_jup = 3.638 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2179-Jul-10 18:26 00:02 Iris 0.0490027257634427 0.0489398297967146 0.0490656880257769 6.48045026683905 6.48045024873617 2517114.267982967 1.81422344416239 4234.00452236843 95.0663057044335 -42.1943592348376 51795.9594341151 T 12 CATAB v2.0f-lin.ifort 2020-Feb-25 17:56:03 2020-Feb-25 17:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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