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212244 (2005 JU57)
Classification: Main-belt Asteroid          SPK-ID: 2212244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0107745787353045 6.3166e-08  
a 2.701041172275891 2.5351e-08 au
q 2.671938591497906 1.6566e-07 au
i .8569031584700207 6.402e-06 deg
node 291.6123224192573 0.00047452 deg
peri 258.2848569321903 0.00062246 deg
M 179.0853153873414 0.00040865 deg
tp 2458193.910231834506
(2018-Mar-16.41023183)
0.0018344 TDB
period 1621.418908141827
4.44
2.2827e-05
6.25e-08
d
yr
n .2220277549449365 3.1258e-09 deg/d
Q 2.730143753053877 2.5624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      9443 days (25.85 yr)  
   first obs. used      1995-01-07  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:49:09  

Additional Information
 Earth MOID = 1.66833 au 
 Jupiter MOID = 2.22888 au 
 T_jup = 3.367 
[ 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 17.0   n/a MPO450007  

212244 (2005 JU57)          Discovered 2005-May-07 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ 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
2124-Jul-09 10:52 00:04 Juno 0.0449125315405372 0.0448661462689063 0.0449589169879702 6.17785613471203 6.17785609086495 2497024.952597167 4.10923558008207 2316.20802385853 79.6577821793058 3.44031590760246 5827.56321757719 T 10 CATAB v2.0f-lin.ifort 2020-Dec-17 23:49:10 2020-Dec-17 23:49

Alternate Designations
 2005 JU57 = 2004 BQ128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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