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117970 (9590 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117970
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989899643976801 4.0552e-08  
a 2.73441495911913 9.8732e-09 au
q 2.190293823755531 1.1223e-07 au
i 4.310171449237418 4.6362e-06 deg
node 50.85926424646499 5.3274e-05 deg
peri 344.1103926171173 5.4672e-05 deg
M 47.48302153592151 1.0068e-05 deg
tp 2458782.663372325350
(2019-Oct-26.16337233)		 4.6176e-05 TDB
period 1651.562672850281
4.52		 8.945e-06
2.449e-08		 d
yr
n .2179753792683562 1.1806e-09 deg/d
Q 3.27853609448273 1.1838e-08 au
   Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      21674 days (59.34 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:52:28  

Additional Information
 Earth MOID = 1.19751 au 
 Jupiter MOID = 2.15323 au 
 T_jup = 3.320 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO502792  
diameter diameter 4.687 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 51.781 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 0.051   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117970 (9590 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 9590 P-L = 2001 QT76 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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