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71170 (1999 XE206)
Classification: Main-belt Asteroid          SPK-ID: 2071170
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07583929722929242 4.4105e-08  
a 3.063985818638178 2.648e-08 au
q 2.831615287432141 1.3797e-07 au
i 11.24322179450627 5.9843e-06 deg
node 53.25409529361876 2.6898e-05 deg
peri 76.95865975518703 5.0945e-05 deg
M 273.186684556763 4.3732e-05 deg
tp 2459472.902725813075
(2021-Sep-15.40272581)
0.0002403 TDB
period 1958.973464202091
5.36
2.5395e-05
6.953e-08
d
yr
n .1837697174456784 2.3823e-09 deg/d
Q 3.296356349844216 2.8488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      7795 days (21.34 yr)  
   first obs. used      1998-09-20  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:21:48  

Additional Information
 Earth MOID = 1.87373 au 
 Jupiter MOID = 1.83639 au 
 T_jup = 3.199 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457197.5 (2015-Jun-24.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07313841153776844 4.5111e-08  
q 2.840381631526057 1.4063e-07 au
tp 2457520.241923170967
(2016-May-11.74192317)
0.00023807 TDB
node 53.31627088190272 2.6945e-05 deg
peri 78.28603022878848 5.1893e-05 deg
i 11.23332273096854 5.9807e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      7795 days (21.34 yr)  
   first obs. used      1998-09-20  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:21:48  

Additional Information
 Jupiter MOID = 1.83639 au 
 T_jup = 3.199 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.034985143371057E-15 -6.246131480549678E-15 3.235992506218609E-12 9.004021420492197E-15 6.425272065810843E-13 -1.720860677897018E-15
q -6.246131480549678E-15 1.977622501659613E-14 -8.303587922412118E-12 -3.558016958652986E-14 -1.69112638167601E-12 8.132095760662402E-15
tp 3.235992506218609E-12 -8.303587922412118E-12 5.6676753855945E-8 -7.936181368031881E-11 1.059233755063665E-8 1.663156271961645E-11
node 9.004021420492197E-15 -3.558016958652986E-14 -7.936181368031881E-11 7.260060907543908E-10 -7.260104024995795E-10 -6.093945585242673E-11
peri 6.425272065810843E-13 -1.69112638167601E-12 1.059233755063665E-8 -7.260104024995795E-10 2.692860134700714E-9 6.268845853190713E-11
i -1.720860677897018E-15 8.132095760662402E-15 1.663156271961645E-11 -6.093945585242673E-11 6.268845853190713E-11 3.57687763491335E-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 14.2   n/a MPO366066  
diameter diameter 5.235 km 0.364 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.178   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71170 (1999 XE206)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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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
1938-Dec-09 20:54 00:03 Jupiter 1.88809462967903 1.8880939781142 1.8880952812444 2.68729540454004 2.51482244849191 2429242.371112391 3.43809193025232 240.542038835722 27.5012249328579 -81.4233170301439 1991858.49051163 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:22:04 2020-Feb-23 16:22
1988-Feb-19 16:29 00:01 Jupiter 1.93417685586461 1.93417611631261 1.93417759541727 4.40798273413178 4.30748926084649 2447211.186629414 1.0842948090695 120.779229812305 27.4277383446018 -80.6220692708476 2191138.00910086 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:22:04 2020-Feb-23 16:22
1997-Sep-29 22:50 < 00:01 Jupiter 1.923819601601 1.92381898283113 1.92382022037099 2.4936499341137 2.31035206077295 2450721.451436013 0.890935718778431 75.2752433539827 19.1103882611831 78.7065859036112 2517111.91499425 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:22:04 2020-Feb-23 16:22
2046-Dec-31 22:49 00:01 Jupiter 1.87636655181693 1.87636599670943 1.87636710692485 3.9973843250257 3.88281454203452 2468711.450640072 1.25004664450448 155.933078132489 21.8904007601927 -85.5535718068952 2454460.54025955 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:22:04 2020-Feb-23 16:22
2056-Jul-21 02:59 00:02 Jupiter 1.9718622499927 1.97186153577851 1.97186296420678 2.66728942948013 2.5010645102902 2472200.624491438 1.78969121209597 92.0221899881825 25.5346641381582 82.6073036237816 2527880.72313897 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:22:04 2020-Feb-23 16:22
2105-Nov-08 01:12 00:04 Jupiter 1.85038392179222 1.85038333160914 1.85038451197704 3.54198103184983 3.41029611681734 2490206.550229497 3.70232405232221 311.367599534844 22.616271257041 -85.8152411162388 2109491.66229185 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:22:04 2020-Feb-23 16:22
2164-Sep-07 21:06 00:06 Jupiter 1.85664731784333 1.85664632758095 1.85664830814455 3.07356981843403 2.92137123187776 2511695.379230587 6.37044574466176 559.052465863242 25.7970991681481 -82.149259039393 2071744.67501584 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:22:04 2020-Feb-23 16:22

Alternate Designations
 1999 XE206 = 1998 SD65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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