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JPL Small-Body Database Browser
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71023 (1999 XT60)
Classification: Main-belt Asteroid          SPK-ID: 2071023
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2063859694740706 4.3315e-08  
a 2.734404961605689 1.5764e-08 au
q 2.17006214266999 1.1906e-07 au
i 8.776731245432231 5.9617e-06 deg
node 238.2691838148984 3.2299e-05 deg
peri 268.8828699382385 3.5996e-05 deg
M 50.67565328351944 1.4765e-05 deg
tp 2458368.017893374480
(2018-Sep-06.51789337)
6.7173e-05 TDB
period 1651.553615242799
4.52
1.4282e-05
3.91e-08
d
yr
n .2179765747096715 1.8849e-09 deg/d
Q 3.298747780541389 1.9017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      677  
   data-arc span      7121 days (19.50 yr)  
   first obs. used      1999-11-09  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:13  

Additional Information
 Earth MOID = 1.20333 au 
 Jupiter MOID = 1.8465 au 
 T_jup = 3.305 
[ 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 15.0   n/a MPO436279  
diameter diameter 3.245 km 0.571 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.106   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71023 (1999 XT60)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XT60 = 2001 HX61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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