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22456 Salopek (1996 XF12)
Classification: Main-belt Asteroid          SPK-ID: 2022456
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021973024436032 5.4233e-08  
a 2.399953363073696 9.8329e-09 au
q 2.154684603377111 1.2913e-07 au
i 7.159897131056614 3.4024e-06 deg
node 87.92206418302045 3.5053e-05 deg
peri 295.31534381022 3.8188e-05 deg
M 183.5487796597146 1.6477e-05 deg
tp 2459666.117598642093
(2022-Mar-27.61759864)
6.3778e-05 TDB
period 1358.008944619612
3.72
8.3459e-06
2.285e-08
d
yr
n .2650939829419449 1.6292e-09 deg/d
Q 2.645222122770281 1.0838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      976  
   data-arc span      8621 days (23.60 yr)  
   first obs. used      1996-12-04  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5703  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:51:10  

Additional Information
 Earth MOID = 1.17021 au 
 Jupiter MOID = 2.77161 au 
 T_jup = 3.509 
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Orbital Elements at Epoch 2457369.5 (2015-Dec-13.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009281131624759 5.4091e-08  
q 2.159060063533794 1.2858e-07 au
tp 2456948.412310774475
(2014-Oct-17.91231077)
5.968e-05 TDB
node 87.99878687154607 3.5055e-05 deg
peri 295.1343658757024 3.829e-05 deg
i 7.158248378675879 3.4002e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      976  
   data-arc span      8621 days (23.60 yr)  
   first obs. used      1996-12-04  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5703  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:51:10  

Additional Information
 Jupiter MOID = 2.77161 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.925790784185507E-15 -6.938882485087963E-15 1.254793397812318E-13 -3.110737441227936E-14 -4.843885473149998E-14 2.090250844662173E-15
q -6.938882485087963E-15 1.653320472045228E-14 -2.079464035220866E-13 7.497123965309669E-14 1.414284110303159E-13 -4.929926301944294E-15
tp 1.254793397812318E-13 -2.079464035220866E-13 3.561716930629358E-9 3.66685926082702E-12 9.393602332333875E-10 -1.806392180165778E-12
node -3.110737441227936E-14 7.497123965309669E-14 3.66685926082702E-12 1.228820073691489E-9 -1.21677470974908E-9 -3.168462588283094E-11
peri -4.843885473149998E-14 1.414284110303159E-13 9.393602332333875E-10 -1.21677470974908E-9 1.466099325236018E-9 3.08711205840322E-11
i 2.090250844662173E-15 -4.929926301944294E-15 -1.806392180165778E-12 -3.168462588283094E-11 3.08711205840322E-11 1.156148022329083E-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 15.4   n/a MPO412350  

22456 Salopek           Discovered 1996 Dec. 4 by Spacewatch at Kitt Peak.
David Stephen Salopek (b. 1963) earned a Ph.D. in cosmology from the University of Toronto in 1989 and worked at the Universities of Cambridge and Alberta. Name suggested and citation prepared by Robert Jedicke and Peter Jedicke.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-08-18Last Updated: 2016-11-23

Alternate Designations
 1996 XF12 = 1999 SV18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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