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12573 (1999 NJ53)
Classification: Main-belt Asteroid          SPK-ID: 2012573
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113760429494903 3.8281e-08  
a 2.940005850177027 1.5179e-08 au
q 2.612559632335958 1.1455e-07 au
i 11.91794205585261 4.8262e-06 deg
node 226.3349922560952 1.766e-05 deg
peri 145.0012837869022 2.7039e-05 deg
M 359.1367401784279 1.9766e-05 deg
tp 2459004.915295210020
(2020-Jun-04.41529521)
0.0001011 TDB
period 1841.283743187234
5.04
1.4259e-05
3.904e-08
d
yr
n .1955157652002323 1.5141e-09 deg/d
Q 3.267452068018097 1.6869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1740  
   data-arc span      10897 days (29.83 yr)  
   first obs. used      1990-11-21  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:29:30  

Additional Information
 Earth MOID = 1.624 au 
 Jupiter MOID = 2.2198 au 
 T_jup = 3.232 
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Orbital Elements at Epoch 2456830.5 (2014-Jun-22.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1151408096436144 3.8613e-08  
q 2.601898825784972 1.1601e-07 au
tp 2457155.685243605371
(2015-May-13.18524361)
9.6965e-05 TDB
node 226.4126972551682 1.7657e-05 deg
peri 143.7310856610783 2.6368e-05 deg
i 11.91797160131188 4.8271e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1740  
   data-arc span      10897 days (29.83 yr)  
   first obs. used      1990-11-21  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:29:30  

Additional Information
 Jupiter MOID = 2.2198 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.490947970361116E-15 -4.449888480775448E-15 1.11279530976476E-12 8.281168291406342E-16 1.935453130235651E-13 1.694108023803993E-16
q -4.449888480775448E-15 1.345834337601058E-14 -3.415289629818661E-12 -1.961819585156885E-15 -6.055160187204035E-13 -2.761977558833296E-16
tp 1.11279530976476E-12 -3.415289629818661E-12 9.402214806707326E-9 -1.062716270152709E-11 1.909246832937049E-9 1.03895606690748E-12
node 8.281168291406342E-16 -1.961819585156885E-15 -1.062716270152709E-11 3.117689965492414E-10 -3.068185488187432E-10 7.227474409177832E-12
peri 1.935453130235651E-13 -6.055160187204035E-13 1.909246832937049E-9 -3.068185488187432E-10 6.952916689073085E-10 -6.830571659630118E-12
i 1.694108023803993E-16 -2.761977558833296E-16 1.03895606690748E-12 7.227474409177832E-12 -6.830571659630118E-12 2.330076829378617E-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 13.2   n/a MPO435820  

12573 (1999 NJ53)          Discovered 1999-Jul-12 by LINEAR at Socorro
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 NJ53 = 1990 WT3 = 1998 KY18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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