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173990 (2001 XG170)
Classification: Main-belt Asteroid          SPK-ID: 2173990
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06452826173180376 6.3766e-08  
a 3.07731417716643 3.2763e-08 au
q 2.878740442511245 2.0033e-07 au
i 2.433170040163033 5.6651e-06 deg
node 99.17578558517552 0.00016354 deg
peri 293.2179674603027 0.00016873 deg
M 195.13906506862 4.1996e-05 deg
tp 2459903.466089678225
(2022-Nov-19.96608968)
0.00023448 TDB
period 1971.769676178676
5.40
3.1489e-05
8.621e-08
d
yr
n .1825771054039568 2.9158e-09 deg/d
Q 3.275887911821616 3.4877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      6709 days (18.37 yr)  
   first obs. used      2001-12-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:34:20  

Additional Information
 Earth MOID = 1.88561 au 
 Jupiter MOID = 2.03992 au 
 T_jup = 3.224 
[ 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 15.8   n/a MPO433119  
diameter diameter 4.376 km 0.910 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173990 (2001 XG170)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 XG170 = 2006 SS361 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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