Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1678818110418134 6.2078e-08  
a 2.965637927623995 1.8581e-08 au
q 2.467761261440188 1.9064e-07 au
i 2.421101087625484 3.981e-06 deg
node 120.7716686704433 0.00013185 deg
peri 23.78921866660436 0.00013276 deg
M 304.3777733258403 1.5742e-05 deg
tp 2459288.718257088641
(2021-Mar-15.21825709)
8.2566e-05 TDB
period 1865.415657660352
5.11
1.7532e-05
4.8e-08
d
yr
n .1929864791911956 1.8137e-09 deg/d
Q 3.463514593807802 2.1701e-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 = 1.48033 au 
 Jupiter MOID = 1.55072 au 
 T_jup = 3.242 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457091.5 (2015-Mar-10.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677413598595466 6.2826e-08  
q 2.467118713244127 1.9304e-07 au
tp 2457427.435634453442
(2016-Feb-08.93563445)
7.6654e-05 TDB
node 120.805768290902 0.00013181 deg
peri 24.45624063159078 0.00013269 deg
i 2.42152055478306 3.983e-06 deg
  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
 Jupiter MOID = 1.55072 au 
 T_jup = 3.242 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.947117727542561E-15 -1.209487070111956E-14 2.184375848552121E-12 7.10856477137272E-14 5.71937027042809E-13 1.09875233266791E-15
q -1.209487070111956E-14 3.726288744436741E-14 -6.278230235206831E-12 -2.142265903356308E-13 -1.684661975263611E-12 -3.027558457981097E-15
tp 2.184375848552121E-12 -6.278230235206831E-12 5.87583740304385E-9 6.529328309878473E-11 1.208348714761457E-9 2.760732743942531E-12
node 7.10856477137272E-14 -2.142265903356308E-13 6.529328309878473E-11 1.737518996410122E-8 -1.734261184922882E-8 1.760268718699218E-10
peri 5.71937027042809E-13 -1.684661975263611E-12 1.208348714761457E-9 -1.734261184922882E-8 1.760562089525941E-8 -1.752803210388601E-10
i 1.09875233266791E-15 -3.027558457981097E-15 2.760732743942531E-12 1.760268718699218E-10 -1.752803210388601E-10 1.586426532650547E-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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-11 05:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin