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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1455668335035527 2.8096e-08  
a 2.636965649428633 9.4427e-09 au
q 2.253110909783667 7.3597e-08 au
i 4.429394820416698 3.4105e-06 deg
node 208.9154182362955 4.7086e-05 deg
peri 248.9864071353472 5.0845e-05 deg
M 94.92209439925341 1.5997e-05 deg
tp 2458788.098774751184
(2019-Oct-31.59877475)
7.0197e-05 TDB
period 1564.066216924325
4.28
8.4011e-06
2.3e-08
d
yr
n .2301692831828604 1.2363e-09 deg/d
Q 3.020820389073599 1.0817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2098  
   data-arc span      10884 days (29.80 yr)  
   first obs. used      1991-06-04  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:20:44  

Additional Information
 Earth MOID = 1.27424 au 
 Jupiter MOID = 2.15973 au 
 T_jup = 3.378 
[ 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 13.98   n/a E2021B10  
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. 2020-October); 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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