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JPL Small-Body Database Browser
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56391 (2000 ET97)
Classification: Main-belt Asteroid          SPK-ID: 2056391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128608819262174 2.8655e-08  
a 2.243916777718829 7.7021e-09 au
q 1.990666351216446 6.7051e-08 au
i 3.776093373380826 4.8734e-06 deg
node 354.043371157522 4.8241e-05 deg
peri 260.0877954628155 5.3906e-05 deg
M 316.4568635514772 2.2627e-05 deg
tp 2459148.999760495905
(2020-Oct-26.49976050)
7.7116e-05 TDB
period 1227.74604998257
3.36
6.3213e-06
1.731e-08
d
yr
n .2932202469762464 1.5097e-09 deg/d
Q 2.497167204221212 8.5714e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1041  
   data-arc span      10399 days (28.47 yr)  
   first obs. used      1991-11-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:07:53  

Additional Information
 Earth MOID = .980363 au 
 Jupiter MOID = 2.54262 au 
 T_jup = 3.621 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457065.5 (2015-Feb-12.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1132644771852151 2.8605e-08  
q 1.989891960374137 6.6978e-08 au
tp 2456692.966201859121
(2014-Feb-04.46620186)
7.8678e-05 TDB
node 354.0692090177727 4.8217e-05 deg
peri 260.0349960558236 5.3862e-05 deg
i 3.777664119093897 4.8742e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1041  
   data-arc span      10399 days (28.47 yr)  
   first obs. used      1991-11-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:07:53  

Additional Information
 Jupiter MOID = 2.54262 au 
 T_jup = 3.621 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.182326981547152E-16 -1.907195285836809E-15 2.018135618796703E-13 -3.9570313240249E-15 6.096258534739028E-14 -4.865117327441343E-16
q -1.907195285836809E-15 4.486114842645563E-15 -5.727286815072217E-13 8.978855901959192E-15 -1.69967062987064E-13 1.31293034258627E-15
tp 2.018135618796703E-13 -5.727286815072217E-13 6.190265064480932E-9 -2.884826013488244E-11 1.894887116606285E-9 -1.091852684663776E-12
node -3.9570313240249E-15 8.978855901959192E-15 -2.884826013488244E-11 2.324839248512188E-9 -2.328017569705356E-9 -4.303470626412617E-11
peri 6.096258534739028E-14 -1.69967062987064E-13 1.894887116606285E-9 -2.328017569705356E-9 2.901113063051628E-9 4.262977584630679E-11
i -4.865117327441343E-16 1.31293034258627E-15 -1.091852684663776E-12 -4.303470626412617E-11 4.262977584630679E-11 2.375827644944388E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO459238  

56391 (2000 ET97)          Discovered 2000-Mar-11 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 ET97 = 2001 SA165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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