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29455 (1997 SX1)
Classification: Main-belt Asteroid          SPK-ID: 2029455
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1455998038276377 2.8148e-08  
a 2.637484169011193 9.4879e-09 au
q 2.253466991404664 7.3802e-08 au
i 4.428947153066278 3.4139e-06 deg
node 208.9185104501179 4.7247e-05 deg
peri 249.058260951955 5.1067e-05 deg
M 48.81962756999695 1.6206e-05 deg
tp 2458788.334297134027
(2019-Oct-31.83429713)
7.0806e-05 TDB
period 1564.52756470209
4.28
8.4422e-06
2.311e-08
d
yr
n .2301014108808939 1.2416e-09 deg/d
Q 3.021501346617723 1.0869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2084  
   data-arc span      10600 days (29.02 yr)  
   first obs. used      1991-06-04  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51387  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:11:53  

Additional Information
 Earth MOID = 1.27481 au 
 Jupiter MOID = 2.159 au 
 T_jup = 3.377 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO324580  
diameter diameter 7.317 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 64.820 h n/a LCDB (Rev. 2019-August); 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   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

29455 (1997 SX1)          Discovered 1997-Sep-23 by Pravec, P., Wolf, M. at Ondrejov
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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