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21319 (1996 XX26)
Classification: Main-belt Asteroid          SPK-ID: 2021319
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2242702460063457 2.7544e-08  
a 2.435363884451505 8.1635e-09 au
q 1.889184226970596 6.873e-08 au
i 11.68799436811895 3.4959e-06 deg
node 105.1419423084544 1.5737e-05 deg
peri 119.5535059124158 1.7808e-05 deg
M 34.13786796630451 9.4479e-06 deg
tp 2459068.862958699724
(2020-Aug-07.36295870)
3.622e-05 TDB
period 1388.175000116432
3.80
6.9798e-06
1.911e-08
d
yr
n .2593332972930685 1.3039e-09 deg/d
Q 2.981543541932413 9.9943e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2059  
   data-arc span      8647 days (23.67 yr)  
   first obs. used      1996-12-08  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:43:19  

Additional Information
 Earth MOID = .908174 au 
 Jupiter MOID = 2.09741 au 
 T_jup = 3.442 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457078.5 (2015-Feb-25.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2247134019952703 2.7469e-08  
q 1.887346661892482 6.8594e-08 au
tp 2457680.295982539419
(2016-Oct-18.79598254)
3.4495e-05 TDB
node 105.1790306517336 1.5735e-05 deg
peri 119.4549539290961 1.7804e-05 deg
i 11.69043120791415 3.4967e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2059  
   data-arc span      8647 days (23.67 yr)  
   first obs. used      1996-12-08  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:43:19  

Additional Information
 Jupiter MOID = 2.09741 au 
 T_jup = 3.442 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.545710928510998E-16 -1.87643630071736E-15 -1.927321071090971E-13 1.823224233497712E-15 -2.686168791425257E-14 -2.97707287318873E-16
q -1.87643630071736E-15 4.705115397119468E-15 4.991367846481642E-13 -4.385920614584606E-15 6.649886546266172E-14 1.260926144350581E-15
tp -1.927321071090971E-13 4.991367846481642E-13 1.18987322218108E-9 -1.739276871104774E-12 2.948172657621955E-10 2.281766496425122E-12
node 1.823224233497712E-15 -4.385920614584606E-15 -1.739276871104774E-12 2.476018049945265E-10 -2.425835675582565E-10 8.878963396571581E-12
peri -2.686168791425257E-14 6.649886546266172E-14 2.948172657621955E-10 -2.425835675582565E-10 3.169841181770977E-10 -8.187874188267747E-12
i -2.97707287318873E-16 1.260926144350581E-15 2.281766496425122E-12 8.878963396571581E-12 -8.187874188267747E-12 1.222696033874549E-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 14.26   n/a E2021B10  
diameter diameter 8.679 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.4 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.071   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21319 (1996 XX26)          Discovered 1996-Dec-08 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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