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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09859618612710536 3.744e-08  
a 2.98448591061708 1.5629e-08 au
q 2.690226982280155 1.1239e-07 au
i 10.21402490158664 4.5949e-06 deg
node 197.9071384464388 2.061e-05 deg
peri 224.809866284623 3.0847e-05 deg
M 357.9875820616811 2.1641e-05 deg
tp 2458611.027334084436
(2019-May-07.52733408)
0.00011321 TDB
period 1883.227235373729
5.16
1.4793e-05
4.05e-08
d
yr
n .1911612115829227 1.5016e-09 deg/d
Q 3.278744838954005 1.717e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1770  
   data-arc span      11262 days (30.83 yr)  
   first obs. used      1989-02-05  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50524  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:29:37  

Additional Information
 Earth MOID = 1.71263 au 
 Jupiter MOID = 2.1241 au 
 T_jup = 3.227 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456697.5 (2014-Feb-09.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09590935336730463 3.7265e-08  
q 2.698046173165746 1.1143e-07 au
tp 2456732.405229695428
(2014-Mar-15.90522970)
0.00011797 TDB
node 198.0405012168623 2.0659e-05 deg
peri 225.6456017070397 3.1394e-05 deg
i 10.19833647497173 4.5899e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1770  
   data-arc span      11262 days (30.83 yr)  
   first obs. used      1989-02-05  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50524  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:29:37  

Additional Information
 Jupiter MOID = 2.1241 au 
 T_jup = 3.227 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.388664364400992E-15 -4.118508877666017E-15 -1.192421682441397E-12 2.80342260322482E-15 -2.628489677693231E-13 3.974677107723763E-16
q -4.118508877666017E-15 1.241742108246811E-14 3.266973212264998E-12 -8.446407400311926E-15 7.251864915058585E-13 -5.313009954161709E-16
tp -1.192421682441397E-12 3.266973212264998E-12 1.391716239878099E-8 -1.895234134196746E-11 2.8010148945819E-9 -8.446070247715326E-12
node 2.80342260322482E-15 -8.446407400311926E-15 -1.895234134196746E-11 4.268090399673721E-10 -4.236360658486043E-10 2.757912828759212E-12
peri -2.628489677693231E-13 7.251864915058585E-13 2.8010148945819E-9 -4.236360658486043E-10 9.856006053345585E-10 -4.395579887374407E-12
i 3.974677107723763E-16 -5.313009954161709E-16 -8.446070247715326E-12 2.757912828759212E-12 -4.395579887374407E-12 2.106706255220491E-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-January); 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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