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26577 (2000 EC91)
Classification: Main-belt Asteroid          SPK-ID: 2026577
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09867069680941867 3.4984e-08  
a 2.984165609810731 1.4784e-08 au
q 2.689715909696002 1.0316e-07 au
i 10.21397974693599 4.02e-06 deg
node 197.8934905505593 2.0452e-05 deg
peri 224.665992686565 3.0448e-05 deg
M 74.58806728358844 2.085e-05 deg
tp 2458610.378700890549
(2019-May-06.87870089)
0.0001093 TDB
period 1882.924076118327
5.16
1.3993e-05
3.831e-08
d
yr
n .191191989398821 1.4208e-09 deg/d
Q 3.278615309925459 1.6243e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2024  
   data-arc span      11405 days (31.23 yr)  
   first obs. used      1989-02-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48034  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:03:37  

Additional Information
 Earth MOID = 1.71243 au 
 Jupiter MOID = 2.12454 au 
 T_jup = 3.227 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456924.5 (2014-Sep-24.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09650940983600334 3.4777e-08  
q 2.698069661902427 1.0224e-07 au
tp 2456732.809864590717
(2014-Mar-16.30986459)
0.0001147 TDB
node 198.0102612577067 2.0501e-05 deg
peri 225.7629333510969 3.0891e-05 deg
i 10.19643270627537 4.0149e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2024  
   data-arc span      11405 days (31.23 yr)  
   first obs. used      1989-02-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48034  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:03:37  

Additional Information
 Jupiter MOID = 2.12454 au 
 T_jup = 3.227 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.209473908109962E-15 -3.525276103398991E-15 -8.622408174644513E-13 1.629024620613121E-15 -2.045585232535435E-13 -3.768759527573303E-16
q -3.525276103398991E-15 1.045339592366746E-14 2.151556464319059E-12 -4.667601010932708E-15 5.284568512494498E-13 1.183110860014456E-15
tp -8.622408174644513E-13 2.151556464319059E-12 1.315651421734262E-8 -1.763637510615485E-11 2.663350573636402E-9 -9.66551293675342E-12
node 1.629024620613121E-15 -4.667601010932708E-15 -1.763637510615485E-11 4.202798060025922E-10 -4.169997312050216E-10 -2.398121282750856E-12
peri -2.045585232535435E-13 5.284568512494498E-13 2.663350573636402E-9 -4.169997312050216E-10 9.542485603291212E-10 4.516424793072233E-13
i -3.768759527573303E-16 1.183110860014456E-15 -9.66551293675342E-12 -2.398121282750856E-12 4.516424793072233E-13 1.611979292693621E-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 13.3   n/a MPO337483  
diameter diameter 7.635 km 0.312 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.676 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.091   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26577 (2000 EC91)          Discovered 2000-Mar-09 by LINEAR at Socorro
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 EC91 = 1989 CQ3 = 1998 XW85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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