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136807 (1997 EQ38)
Classification: Outer Main-belt Asteroid          SPK-ID: 2136807
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2526773571192082 6.6436e-08  
a 3.26383471338387 2.593e-08 au
q 2.439137583932105 2.1081e-07 au
i 1.482525829184305 6.3394e-06 deg
node 327.5350347915245 0.00023798 deg
peri 199.3963454795186 0.00023823 deg
M 333.2411893977578 1.3565e-05 deg
tp 2459160.586595038359
(2020-Nov-07.08659504)
8.2542e-05 TDB
period 2153.727049773278
5.90
2.5666e-05
7.027e-08
d
yr
n .167152100373117 1.992e-09 deg/d
Q 4.088531842835635 3.2482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      8402 days (23.00 yr)  
   first obs. used      1997-01-30  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5429  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:42:35  

Additional Information
 Earth MOID = 1.44627 au 
 Jupiter MOID = .897165 au 
 T_jup = 3.126 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456508.5 (2013-Aug-04.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2549988806316482 6.6127e-08  
q 2.428481837910753 2.1047e-07 au
tp 2457008.544796872231
(2014-Dec-17.04479687)
6.5375e-05 TDB
node 327.6361961108796 0.00023813 deg
peri 199.5707789693438 0.00023838 deg
i 1.483710533246101 6.3377e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      8402 days (23.00 yr)  
   first obs. used      1997-01-30  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5429  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:42:35  

Additional Information
 Jupiter MOID = .897165 au 
 T_jup = 3.126 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.372786495077116E-15 -1.386838308051201E-14 2.39987119411959E-12 2.314900600648107E-14 4.431985709363618E-13 -3.003473258357705E-16
q -1.386838308051201E-14 4.429959780261096E-14 -7.198589314962146E-12 -6.542523578332188E-14 -1.359389411323301E-12 9.19419531840814E-16
tp 2.39987119411959E-12 -7.198589314962146E-12 4.27386022382354E-9 2.490144727812536E-11 7.738058456553591E-10 1.372667701946437E-13
node 2.314900600648107E-14 -6.542523578332188E-14 2.490144727812536E-11 5.670508537753196E-8 -5.66816335569256E-8 7.461676097170827E-10
peri 4.431985709363618E-13 -1.359389411323301E-12 7.738058456553591E-10 -5.66816335569256E-8 5.682536256223536E-8 -7.459300617235487E-10
i -3.003473258357705E-16 9.19419531840814E-16 1.372667701946437E-13 7.461676097170827E-10 -7.459300617235487E-10 4.016667226516148E-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 14.8   n/a MPO325422  
diameter diameter 6.550 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136807 (1997 EQ38)          Discovered 1997-Mar-05 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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