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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1680454031138852 6.2678e-08  
a 2.964501133839906 1.8747e-08 au
q 2.466330345772209 1.9199e-07 au
i 2.421101701883754 4.3742e-06 deg
node 120.7772422220369 0.00013375 deg
peri 23.91407998218417 0.00013465 deg
M 227.0365906503662 1.547e-05 deg
tp 2459289.081736739019
(2021-Mar-15.58173674)
8.238e-05 TDB
period 1864.343178612468
5.10
1.7685e-05
4.842e-08
d
yr
n .1930974962817355 1.8317e-09 deg/d
Q 3.462671921907602 2.1897e-08 au
  Orbit Determination Parameters
   # obs. used (total)      970  
   data-arc span      10394 days (28.46 yr)  
   first obs. used      1991-05-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:23:52  

Additional Information
 Earth MOID = 1.47934 au 
 Jupiter MOID = 1.55281 au 
 T_jup = 3.242 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456900.5 (2014-Aug-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1676461980448518 6.3338e-08  
q 2.467613905533543 1.942e-07 au
tp 2457427.368493435109
(2016-Feb-08.86849343)
7.6752e-05 TDB
node 120.8052899487558 0.00013368 deg
peri 24.42299776634011 0.00013455 deg
i 2.421517938351431 4.3762e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      970  
   data-arc span      10394 days (28.46 yr)  
   first obs. used      1991-05-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:23:52  

Additional Information
 Jupiter MOID = 1.55281 au 
 T_jup = 3.242 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.011729200833039E-15 -1.226575390229322E-14 2.169671579149098E-12 6.849527699685774E-14 5.642064409593706E-13 8.453103694048334E-16
q -1.226575390229322E-14 3.771379096731702E-14 -6.239076260220409E-12 -2.063121058399294E-13 -1.665045431975101E-12 -2.267474307606124E-15
tp 2.169671579149098E-12 -6.239076260220409E-12 5.890846600697428E-9 6.245838795153329E-11 1.216059580225146E-9 2.525323783438833E-12
node 6.849527699685774E-14 -2.063121058399294E-13 6.245838795153329E-11 1.787077838338994E-8 -1.783849042047405E-8 2.162813808995715E-10
peri 5.642064409593706E-13 -1.665045431975101E-12 1.216059580225146E-9 -1.783849042047405E-8 1.810390680086869E-8 -2.155557716572514E-10
i 8.453103694048334E-16 -2.267474307606124E-15 2.525323783438833E-12 2.162813808995715E-10 -2.155557716572514E-10 1.915125060404938E-11

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

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