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JPL Small-Body Database Browser
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71171 (1999 XG206)
Classification: Main-belt Asteroid          SPK-ID: 2071171
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104056461199356 4.819e-08  
a 3.096722745486881 2.6493e-08 au
q 2.754827069917101 1.4875e-07 au
i 12.55176473957827 5.9576e-06 deg
node 62.02895403590009 2.6099e-05 deg
peri 27.25413710356587 3.9425e-05 deg
M 212.4828325872817 3.0485e-05 deg
tp 2459416.127718839565
(2021-Jul-20.62771884)
0.00017199 TDB
period 1990.452934611652
5.45
2.5543e-05
6.993e-08
d
yr
n .1808633571485265 2.321e-09 deg/d
Q 3.438618421056661 2.9418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      7233 days (19.80 yr)  
   first obs. used      1998-09-21  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58261  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:13:41  

Additional Information
 Earth MOID = 1.77706 au 
 Jupiter MOID = 1.86507 au 
 T_jup = 3.177 
[ 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 13.9   n/a MPO439544  
diameter diameter 5.233 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71171 (1999 XG206)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1937-May-22 11:09 00:03 Jupiter 1.88928955336704 1.88928875985734 1.88929034688201 2.94243693757698 2.78590702603447 2428675.964308596 3.19045732965361 212.049795727488 16.1456867479353 77.4701220881126 2325899.05716998 T 18 CATAB v2.0e-lin.ifort 2018-Oct-04 02:13:46 2018-Dec-17 17:09
1998-Jan-21 06:59 < 00:01 Jupiter 1.99160849701727 1.99160775385476 1.99160924018001 2.83577740440959 2.68161184765339 2450834.790692476 0.81457146274973 77.5426177766655 19.5951481949608 76.4554085327077 2016033.90809557 T 18 CATAB v2.0e-lin.ifort 2018-Oct-04 02:13:46 2018-Dec-17 17:09
2007-Nov-24 03:44 < 00:01 Jupiter 1.87827714616907 1.87827658501008 1.87827770732849 3.38291142060032 3.24687162852304 2454428.655263478 0.410768859438406 85.5798984363191 15.1504368181162 77.2507103788384 2455565.96327339 T 18 CATAB v2.0e-lin.ifort 2018-Oct-04 02:13:46 2018-Dec-17 17:09
2068-Jun-30 15:44 00:02 Jupiter 1.92467652729753 1.92467580259265 1.92467725200338 2.48285118978237 2.29877766117905 2476563.155580020 2.33364155048636 137.411060339999 20.6962264603763 75.781711552947 2529183.65344037 T 18 CATAB v2.0e-lin.ifort 2018-Oct-04 02:13:46 2018-Dec-17 17:09
2078-Jun-07 18:32 00:02 Jupiter 1.93970716501398 1.93970628397037 1.93970804605804 3.77292101526764 3.65534978767723 2480192.272492235 2.3440835868665 143.666956247108 36.5677768175906 -85.1712288353629 2213609.54934594 T 18 CATAB v2.0e-lin.ifort 2018-Oct-04 02:13:46 2018-Dec-17 17:09
2138-Dec-16 20:50 00:05 Jupiter 1.88332549306945 1.88332484136666 1.88332614477502 2.86680406725102 2.70537776997688 2502298.367908723 5.05119583040532 309.358383518629 19.4346080346998 81.1880081446948 2050865.57996507 T 18 CATAB v2.0e-lin.ifort 2018-Oct-04 02:13:46 2018-Dec-17 17:09
2199-Aug-20 15:59 00:08 Jupiter 1.95347104681203 1.95347006105641 1.95347203258842 2.63840962041847 2.46860444694335 2524460.166045468 8.04183648941413 442.137682856328 30.008515342742 -84.1765816005544 2044463.91628717 T 18 CATAB v2.0e-lin.ifort 2018-Oct-04 02:13:46 2018-Dec-17 17:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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