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308741 (2006 JJ8)
Classification: Main-belt Asteroid          SPK-ID: 2308741
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1713456637895422 3.9176e-08  
a 2.406777602045695 2.1669e-08 au
q 1.994386696229373 9.8975e-08 au
i 3.347446499107084 4.8106e-06 deg
node 65.84639602583331 0.00013384 deg
peri 199.881609693018 0.00013583 deg
M 247.4164040999902 2.6704e-05 deg
tp 2459427.005841527885
(2021-Jul-31.50584153)
0.0001036 TDB
period 1363.805283732505
3.73
1.8418e-05
5.043e-08
d
yr
n .2639673011199521 3.5649e-09 deg/d
Q 2.819168507862017 2.5382e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      6031 days (16.51 yr)  
   first obs. used      2002-03-16  
   last obs. used      2018-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59125  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 12:43:50  

Additional Information
 Earth MOID = .978958 au 
 Jupiter MOID = 2.26121 au 
 T_jup = 3.500 
[ 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 17.3   n/a MPO455274  

308741 (2006 JJ8)          Discovered 2006-May-01 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ 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
1927-Feb-27 18:28 00:02 Amphi 0.00855289691020179 0.00853752943851078 0.00856929645931237 4.7390624485631 4.73906230673334 2424939.269743544 1.93319635974836 4919.50596965857 208.376811044741 81.0609898598767 6063.15478853764 T 8 CATAB v2.0e-lin.ifort 2018-Oct-03 12:43:51 2018-Dec-18 00:49
1955-May-25 16:32 00:23 Psych 0.0329043994207288 0.0328497312776201 0.0329590676349021 3.50864699314108 3.5086468883415 2435253.189140748 22.844891728897 2723.21675740507 115.892313816585 -1.26290873187796 2032.35243492357 T 8 CATAB v2.0e-lin.ifort 2018-Oct-03 12:43:51 2018-Dec-18 00:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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