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134679 (1999 XX4)
Classification: Main-belt Asteroid          SPK-ID: 2134679
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2263627132323725 4.3834e-08  
a 2.408083067376279 1.5011e-08 au
q 1.86298285055605 1.0202e-07 au
i 2.83008290775158 4.5737e-06 deg
node 172.0274446007173 9.6187e-05 deg
peri 169.9076315207163 9.7017e-05 deg
M 281.7431133610752 1.8646e-05 deg
tp 2459497.205562260958
(2021-Oct-09.70556226)
7.2872e-05 TDB
period 1364.915050949851
3.74
1.2763e-05
3.494e-08
d
yr
n .2637526780508972 2.4662e-09 deg/d
Q 2.953183284196507 1.8409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      8506 days (23.29 yr)  
   first obs. used      1997-01-31  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56907  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:09:26  

Additional Information
 Earth MOID = .853123 au 
 Jupiter MOID = 2.4566 au 
 T_jup = 3.484 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456781.5 (2014-May-04.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2262262469886712 4.376e-08  
q 1.863606929595504 1.0183e-07 au
tp 2456763.519827194474
(2014-Apr-16.01982719)
5.4379e-05 TDB
node 172.0722267337818 9.6403e-05 deg
peri 169.3195814044174 9.7219e-05 deg
i 2.824427880890565 4.5694e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      8506 days (23.29 yr)  
   first obs. used      1997-01-31  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56907  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:09:26  

Additional Information
 Jupiter MOID = 2.4566 au 
 T_jup = 3.484 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.914950706276271E-15 -4.429789897707897E-15 9.894582170738266E-13 5.232979786331421E-15 1.734413630464945E-13 -1.162787237127343E-15
q -4.429789897707897E-15 1.03700392402412E-14 -1.995502866310854E-12 -1.165440030763891E-14 -3.332727076851928E-13 2.42220066224884E-15
tp 9.894582170738266E-13 -1.995502866310854E-12 2.957057349610374E-9 1.49875640299849E-11 7.028814453604082E-10 -3.406476461253113E-12
node 5.232979786331421E-15 -1.165440030763891E-14 1.49875640299849E-11 9.293577332805716E-9 -9.278455745057059E-9 7.938990333498234E-11
peri 1.734413630464945E-13 -3.332727076851928E-13 7.028814453604082E-10 -9.278455745057059E-9 9.451466942251906E-9 -8.013304384376546E-11
i -1.162787237127343E-15 2.42220066224884E-15 -3.406476461253113E-12 7.938990333498234E-11 -8.013304384376546E-11 2.08796171028756E-11

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 16.12   n/a E2021B55  
diameter diameter 1.534 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134679 (1999 XX4)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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Alternate Designations
 1999 XX4 = 2002 LD26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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