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390244 (2012 XX79)
Classification: Main-belt Asteroid          SPK-ID: 2390244
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07245337270960001 5.0178e-08  
a 2.393325416443188 1.77e-08 au
q 2.219920918030271 1.2513e-07 au
i 4.97459281772671 6.9019e-06 deg
node 169.2071766513293 6.2203e-05 deg
peri 87.73114290264458 8.0389e-05 deg
M 226.0786491213219 5.23e-05 deg
tp 2459703.593118509661
(2022-May-04.09311851)
0.00019857 TDB
period 1352.387214399832
3.70
1.5002e-05
4.107e-08
d
yr
n .2661959505138934 2.953e-09 deg/d
Q 2.566729914856105 1.8982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      6507 days (17.82 yr)  
   first obs. used      2003-03-27  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61624  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 16:52:54  

Additional Information
 Earth MOID = 1.2102 au 
 Jupiter MOID = 2.45654 au 
 T_jup = 3.522 
[ 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 17.5   n/a MPO494979  

390244 (2012 XX79)          Discovered 2004-Sep-11 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

[ 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
2078-Apr-04 18:29 < 00:01 Hebe 0.0456228818757515 0.0456061790609006 0.0456395992279307 5.97201589083378 5.97201586801702 2480128.269855937 0.812036769291032 1534.37058502558 71.4872262297539 -57.2161965359036 80278.0982524685 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 16:52:55 2021-Feb-24 16:52
2172-May-19 23:10 00:07 David 0.0388118002088038 0.0387785465445603 0.038845118506674 5.23731950914112 5.23731943482035 2514506.465045165 7.37874196749535 2997.97190283218 41.8986820714447 -56.4093056595811 115378.339844665 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 16:52:55 2021-Feb-24 16:52

Alternate Designations
 2012 XX79 = 2004 RP354 = 2010 JX8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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