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146504 (2001 SH45)
Classification: Main-belt Asteroid          SPK-ID: 2146504
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1592731710044289 2.7785e-08  
a 2.642706046275538 9.7396e-09 au
q 2.221793874252656 7.2309e-08 au
i 5.600383638915432 3.4788e-06 deg
node 131.1656290134986 3.6363e-05 deg
peri 321.3545227907614 3.9075e-05 deg
M 149.4788462866108 1.3734e-05 deg
tp 2458744.948197171217
(2019-Sep-18.44819717)
5.8656e-05 TDB
period 1569.176206836779
4.30
8.6747e-06
2.375e-08
d
yr
n .2294197416654089 1.2683e-09 deg/d
Q 3.06361821829842 1.1291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1033  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      2001-09-16  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 19:03:26  

Additional Information
 Earth MOID = 1.24181 au 
 Jupiter MOID = 2.12179 au 
 T_jup = 3.369 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457455.5 (2016-Mar-08.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587175624221105 2.7761e-08  
q 2.225235756522801 7.2271e-08 au
tp 2457177.390807865409
(2015-Jun-03.89080787)
5.7018e-05 TDB
node 131.2046530297324 3.634e-05 deg
peri 321.9564637413413 3.9064e-05 deg
i 5.600643121344309 3.4794e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1033  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      2001-09-16  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 19:03:26  

Additional Information
 Jupiter MOID = 2.12179 au 
 T_jup = 3.369 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.706990481979915E-16 -1.993920934531234E-15 -2.139044028781521E-14 -3.508931009681058E-16 -2.705293621853775E-14 -2.947544291561803E-16
q -1.993920934531234E-15 5.223118615284447E-15 1.126636379854427E-13 3.927596986351476E-16 8.590443826883419E-14 8.119430991315662E-16
tp -2.139044028781521E-14 1.126636379854427E-13 3.251004412044519E-9 -1.581541525737855E-12 8.297189309242041E-10 2.204554218272867E-14
node -3.508931009681058E-16 3.927596986351476E-16 -1.581541525737855E-12 1.320577157974925E-9 -1.314446691779753E-9 2.990620826508589E-11
peri -2.705293621853775E-14 8.590443826883419E-14 8.297189309242041E-10 -1.314446691779753E-9 1.526022285356535E-9 -2.974088647688866E-11
i -2.947544291561803E-16 8.119430991315662E-16 2.204554218272867E-14 2.990620826508589E-11 -2.974088647688866E-11 1.210635034206816E-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 15.53   n/a MPO614063  

146504 (2001 SH45)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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