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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109962913442781 4.3902e-08  
a 3.095083704092403 2.3437e-08 au
q 2.751540891538035 1.3988e-07 au
i 12.55122178475325 5.7361e-06 deg
node 62.01814881667734 2.5572e-05 deg
peri 27.43202257145039 3.8296e-05 deg
M 284.7309725905319 2.9248e-05 deg
tp 2459416.334797196810
(2021-Jul-20.83479720)
0.00016298 TDB
period 1988.872875644741
5.45
2.2591e-05
6.185e-08
d
yr
n .181007043943569 2.056e-09 deg/d
Q 3.438626516646771 2.6039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      967  
   data-arc span      8036 days (22.00 yr)  
   first obs. used      1998-09-21  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56866  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:41:35  

Additional Information
 Earth MOID = 1.77393 au 
 Jupiter MOID = 1.86469 au 
 T_jup = 3.178 
[ 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 11:08 00:03 Jupiter 1.88928952850388 1.88928881776013 1.88929023925161 2.942438982922 2.78590918418204 2428675.963731589 2.91747566153737 195.013145535823 15.7067166246249 77.8539038019315 2445700.74457394 T 20 CATAB v2.0f-lin.ifort 2020-Oct-22 18:41:50 2020-Oct-22 18:41
1998-Jan-21 06:58 < 00:01 Jupiter 1.99160870432795 1.99160799514031 1.99160941351581 2.83577684639027 2.68161127406229 2450834.790566635 0.785168264409847 76.1926900508609 18.8659194460676 76.9473419098425 2144498.8169433 T 20 CATAB v2.0f-lin.ifort 2020-Oct-22 18:41:50 2020-Oct-22 18:41
2007-Nov-24 03:43 < 00:01 Jupiter 1.87827710761644 1.87827659102155 1.87827762421176 3.3829129271478 3.24687319534213 2454428.655173349 0.399779712376003 82.4953480776006 13.7358417859305 77.8039599317434 2606304.3599613 T 20 CATAB v2.0f-lin.ifort 2020-Oct-22 18:41:50 2020-Oct-22 18:41
2068-Jun-30 15:45 00:02 Jupiter 1.92467677271037 1.92467606098709 1.92467748443462 2.48285103592523 2.29877751941255 2476563.155941307 2.06868173711514 123.80787387299 19.4541994435106 74.6277027512648 2732425.5409347 T 20 CATAB v2.0f-lin.ifort 2020-Oct-22 18:41:50 2020-Oct-22 18:41
2078-Jun-07 18:33 00:02 Jupiter 1.93970692094325 1.93970616973943 1.93970767214729 3.77292176873005 3.65535055034238 2480192.272865941 2.10166058446506 135.630168391133 31.8159505695743 -86.6015360483424 2427758.98147541 T 20 CATAB v2.0f-lin.ifort 2020-Oct-22 18:41:50 2020-Oct-22 18:41
2138-Dec-16 20:51 00:05 Jupiter 1.88332560868955 1.88332497036984 1.88332624701311 2.86680308209552 2.7053767362443 2502298.368728547 4.53530075190191 280.331609770985 18.0040578455084 80.6335468194295 2215140.98761957 T 20 CATAB v2.0f-lin.ifort 2020-Oct-22 18:41:50 2020-Oct-22 18:41
2199-Aug-20 16:01 00:07 Jupiter 1.95347149041203 1.95347054718637 1.95347243365412 2.6384131614885 2.46860827147468 2524460.167416760 7.21575114835904 393.901076379017 28.7362771235866 -84.2738302578934 2108748.58230521 T 20 CATAB v2.0f-lin.ifort 2020-Oct-22 18:41:50 2020-Oct-22 18:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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