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214121 (2004 XA28)
Classification: Main-belt Asteroid          SPK-ID: 2214121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1789689630947364 3.9751e-08  
a 2.33392429169332 1.3932e-08 au
q 1.91622428126735 9.0385e-08 au
i 3.037508243895028 5.5867e-06 deg
node 54.78568657176336 9.9168e-05 deg
peri 58.87833431270484 0.00010116 deg
M 99.19713548391729 2.0281e-05 deg
tp 2458641.639875370420
(2019-Jun-07.13987537)
7.1713e-05 TDB
period 1302.352575368412
3.57
1.1661e-05
3.193e-08
d
yr
n .2764228418699617 2.475e-09 deg/d
Q 2.751624302119291 1.6425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      7178 days (19.65 yr)  
   first obs. used      2000-09-29  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:50:08  

Additional Information
 Earth MOID = .934824 au 
 Jupiter MOID = 2.35451 au 
 T_jup = 3.545 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457624.5 (2016-Aug-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1793059350708479 3.9792e-08  
q 1.91569027241709 9.063e-08 au
tp 2457340.025694576415
(2015-Nov-13.52569458)
6.6577e-05 TDB
node 54.78957090960002 9.9165e-05 deg
peri 59.07389266673403 0.00010115 deg
i 3.037711024054359 5.5869e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      7178 days (19.65 yr)  
   first obs. used      2000-09-29  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:50:08  

Additional Information
 Jupiter MOID = 2.35451 au 
 T_jup = 3.545 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.583389949073962E-15 -3.579739978953471E-15 4.849509372044116E-13 1.149180790092481E-14 1.071974823598713E-13 -2.50793053309331E-15
q -3.579739978953471E-15 8.213779312275076E-15 -8.720470340960064E-13 -2.663367188889695E-14 -1.687965292663102E-13 5.615385201307372E-15
tp 4.849509372044116E-13 -8.720470340960064E-13 4.432511133879956E-9 8.660314911638295E-12 1.350130977750399E-9 -4.173491239550067E-12
node 1.149180790092481E-14 -2.663367188889695E-14 8.660314911638295E-12 9.833667133056599E-9 -9.817130566000709E-9 -1.909797585672525E-10
peri 1.071974823598713E-13 -1.687965292663102E-13 1.350130977750399E-9 -9.817130566000709E-9 1.023132686386586E-8 1.894977213745596E-10
i -2.50793053309331E-15 5.615385201307372E-15 -4.173491239550067E-12 -1.909797585672525E-10 1.894977213745596E-10 3.121332227337186E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO459955  

214121 (2004 XA28)          Discovered 2004-Dec-10 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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