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70957 (1999 XQ5)
Classification: Main-belt Asteroid          SPK-ID: 2070957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09539667369665275 5.2289e-08  
a 2.711772686828223 1.8466e-08 au
q 2.453078592683375 1.4304e-07 au
i 16.60586894557493 6.0012e-06 deg
node 269.4377998220343 2.1464e-05 deg
peri 151.6320465340921 4.1356e-05 deg
M 232.6063685715882 3.6818e-05 deg
tp 2459577.696337866611
(2021-Dec-29.19633787)
0.00016977 TDB
period 1631.091596197623
4.47
1.6661e-05
4.562e-08
d
yr
n .2207110874945507 2.2545e-09 deg/d
Q 2.97046678097307 2.0228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      659  
   data-arc span      7965 days (21.81 yr)  
   first obs. used      1998-08-27  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:37:34  

Additional Information
 Earth MOID = 1.47772 au 
 Jupiter MOID = 2.31113 au 
 T_jup = 3.296 
[ 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 14.4   n/a MPO395648  
diameter diameter 7.605 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.51103 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.054   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70957 (1999 XQ5)          Discovered 1999-Dec-07 by Roe, J. M. at Oaxaca
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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