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26421 (1999 XP113)
Classification: Main-belt Asteroid          SPK-ID: 2026421
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186412328775599 4.7988e-08  
a 2.550948053735085 1.0486e-08 au
q 2.248300431633343 1.2583e-07 au
i 13.15246292407026 4.7486e-06 deg
node 324.2094783187854 1.6079e-05 deg
peri 174.6302664795968 2.3783e-05 deg
M 349.0097943216246 1.6324e-05 deg
tp 2459245.931195864530
(2021-Jan-31.43119586)
6.7472e-05 TDB
period 1488.164188174551
4.07
9.1758e-06
2.512e-08
d
yr
n .2419087912884076 1.4916e-09 deg/d
Q 2.853595675836828 1.173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1861  
   data-arc span      13979 days (38.27 yr)  
   first obs. used      1982-10-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:19:22  

Additional Information
 Earth MOID = 1.26157 au 
 Jupiter MOID = 2.17364 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457350.5 (2015-Nov-24.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177431311562189 4.8317e-08  
q 2.250477953511076 1.2661e-07 au
tp 2457759.798173294698
(2017-Jan-06.29817329)
6.8587e-05 TDB
node 324.2887772628479 1.607e-05 deg
peri 174.9663807819585 2.381e-05 deg
i 13.15498819437422 4.7506e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1861  
   data-arc span      13979 days (38.27 yr)  
   first obs. used      1982-10-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:19:22  

Additional Information
 Jupiter MOID = 2.17364 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.334550469641409E-15 -6.102887177548454E-15 1.500529564397925E-12 -7.958577045972496E-15 4.336484322021186E-13 4.781747555700414E-15
q -6.102887177548454E-15 1.60298603638624E-14 -3.929463504051338E-12 2.053903016644296E-14 -1.140194577925799E-12 -1.225341218566685E-14
tp 1.500529564397925E-12 -3.929463504051338E-12 4.704157764630161E-9 -1.923993693235184E-11 1.215699022462302E-9 5.223127792572444E-12
node -7.958577045972496E-15 2.053903016644296E-14 -1.923993693235184E-11 2.582557354004495E-10 -2.556311870274781E-10 2.278450600900415E-11
peri 4.336484322021186E-13 -1.140194577925799E-12 1.215699022462302E-9 -2.556311870274781E-10 5.669353303821628E-10 -2.075057227957539E-11
i 4.781747555700414E-15 -1.225341218566685E-14 5.223127792572444E-12 2.278450600900415E-11 -2.075057227957539E-11 2.256782595642913E-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 13.68   n/a E2021B10  
diameter diameter 5.463 km 0.343 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.320 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Zeigler, K.; Banshaw, B.; Gass, J. (2017) Minor Planet Bull. 44, 259-260.]
geometric albedo albedo 0.258   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26421 (1999 XP113)          Discovered 1999-Dec-11 by LINEAR at Socorro
Reference: 20010705/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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