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26423 (1999 XN140)
Classification: Main-belt Asteroid          SPK-ID: 2026423
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2409451447679748 3.3451e-08  
a 2.259989816233622 8.3932e-09 au
q 1.715456242787063 7.7289e-08 au
i 5.701149351512369 3.5649e-06 deg
node 109.6158709984065 4.4329e-05 deg
peri 187.0543317428724 4.5392e-05 deg
M 230.499842091435 9.5315e-06 deg
tp 2459646.901810516123
(2022-Mar-08.40181052)
3.3186e-05 TDB
period 1240.961048860432
3.40
6.913e-06
1.893e-08
d
yr
n .2900977434630894 1.6161e-09 deg/d
Q 2.804523389680181 1.0415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      8751 days (23.96 yr)  
   first obs. used      1997-02-01  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:19:22  

Additional Information
 Earth MOID = .69772 au 
 Jupiter MOID = 2.41157 au 
 T_jup = 3.575 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456572.5 (2013-Oct-07.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2405178025847965 3.336e-08  
q 1.716912853478749 7.7037e-08 au
tp 2457165.671335154354
(2015-May-23.17133515)
3.3835e-05 TDB
node 109.650056583145 4.4331e-05 deg
peri 187.0225739394857 4.5405e-05 deg
i 5.700372812672083 3.5641e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      8751 days (23.96 yr)  
   first obs. used      1997-02-01  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:19:22  

Additional Information
 Jupiter MOID = 2.41157 au 
 T_jup = 3.575 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.112912907820346E-15 -2.561521365286038E-15 3.416087144201915E-13 1.794809857118382E-14 5.353549957678015E-14 -2.101543564598215E-15
q -2.561521365286038E-15 5.934758009455603E-15 -8.292905365882458E-13 -4.151147916129902E-14 -1.436224862168565E-13 5.067277765039174E-15
tp 3.416087144201915E-13 -8.292905365882458E-13 1.144817873217433E-9 2.542232086650415E-11 3.448347026388473E-10 -2.86952211756188E-12
node 1.794809857118382E-14 -4.151147916129902E-14 2.542232086650415E-11 1.965210052785046E-9 -1.948224958946711E-9 2.206679022450384E-11
peri 5.353549957678015E-14 -1.436224862168565E-13 3.448347026388473E-10 -1.948224958946711E-9 2.061658117718803E-9 -2.285610357601223E-11
i -2.101543564598215E-15 5.067277765039174E-15 -2.86952211756188E-12 2.206679022450384E-11 -2.285610357601223E-11 1.270269396262957E-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 15.63   n/a E2021B10  

26423 (1999 XN140)          Discovered 1999-Dec-02 by Spacewatch at Kitt Peak
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XN140 = 2001 KK14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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