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JPL Small-Body Database Browser
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71018 (1999 XC57)
Classification: Main-belt Asteroid          SPK-ID: 2071018
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1680454056710514 6.2145e-08  
a 2.964501134706158 1.8546e-08 au
q 2.46633033891217 1.9074e-07 au
i 2.421101112648908 3.9811e-06 deg
node 120.7772351086036 0.00013188 deg
peri 23.91408672425008 0.00013278 deg
M 227.0365906465354 1.547e-05 deg
tp 2459289.081737060672
(2021-Mar-15.58173706)
8.2377e-05 TDB
period 1864.343179429633
5.10
1.7495e-05
4.79e-08
d
yr
n .1930974961970985 1.812e-09 deg/d
Q 3.462671930500147 2.1662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      10422 days (28.53 yr)  
   first obs. used      1991-05-17  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52691  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:15:23  

Additional Information
 Earth MOID = 1.47934 au 
 Jupiter MOID = 1.55281 au 
 T_jup = 3.242 
[ 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 14.6   n/a MPO449448  
diameter diameter 7.021 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71018 (1999 XC57)          Discovered 1999-Dec-07 by LINEAR at Socorro
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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