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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
172060 (2001 XR208)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172060
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08284625552942061 6.5068e-08  
a 3.433795100454768 4.916e-08 au
q 3.14931803412682 2.1622e-07 au
i 16.64955713991407 5.945e-06 deg
node 247.7104024095486 2.4506e-05 deg
peri 317.2439124430952 4.4003e-05 deg
M 211.0805920338103 3.7896e-05 deg
tp 2459961.910347425328
(2023-Jan-17.41034743)
0.0002529 TDB
period 2324.127726533117
6.36
4.991e-05
1.366e-07
d
yr
n .154896822532645 3.3264e-09 deg/d
Q 3.718272166782717 5.3233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      6643 days (18.19 yr)  
   first obs. used      2001-11-20  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:42:52  

Additional Information
 Earth MOID = 2.16288 au 
 Jupiter MOID = 1.38452 au 
 T_jup = 3.067 
[ 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 14.5   n/a MPO454179  
diameter diameter 7.216 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172060 (2001 XR208)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ 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
1906-Sep-29 07:19 00:08 Jupiter 1.676681900537 1.6766744667651 1.67668933435674 4.78096306525214 4.67410442557833 2417482.804956910 7.68195194271069 597.65909021015 100.105785794558 52.8209902521965 2037578.99638869 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
1960-Oct-04 08:15 00:04 Jupiter 1.93580457170376 1.93580348540719 1.93580565801893 5.45714144405838 5.37636318925155 2437211.843781988 3.88547866370204 412.380944269042 34.6860437370428 85.0484970507719 2340970.92991224 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
1974-Nov-23 09:18 00:09 Jupiter 1.82863825895329 1.82863612055627 1.82864039779041 1.40729935970967 1.0266910289889 2442374.887641050 9.41719240759624 4060.78802930873 190.443357217364 27.3754096334516 767845.590234763 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
1988-Oct-22 02:10 00:02 Jupiter 1.34023156500175 1.34023074544064 1.34023238457298 4.60982759629016 4.47062816479198 2447456.590450309 1.6986432098201 390.70436631095 35.1949800265259 87.3431524256948 2531427.40669673 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
2002-Apr-08 03:55 00:01 Jupiter 1.99035386755665 1.99035239244267 1.99035534267165 4.57126066750685 4.47719739679849 2452372.663099803 1.1113586746748 211.689257175868 67.7175187076505 -81.8341733111143 2600861.90683831 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
2056-Apr-20 03:50 00:03 Jupiter 1.93723011138322 1.93722923828757 1.93723098447887 4.48441955885695 4.38583528487601 2472108.659995629 2.89667921989127 184.221275677277 42.0107203953118 -87.4428343026793 1359992.47364171 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
2070-Nov-21 20:24 00:04 Jupiter 1.53084228451826 1.53083886992098 1.53084569915426 4.14250560684822 4.00671223456984 2477437.350044672 4.18194403202379 451.655058978774 65.0163776901103 -67.846840990763 1738384.86722871 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
2084-Mar-30 06:00 00:04 Jupiter 1.4825662786271 1.4825630436092 1.48256951372844 4.70445442722899 4.5814023779581 2482314.749975395 4.36018182564401 611.307882813014 48.8265907666064 75.4235844680276 2726295.50119372 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
2152-Jan-27 15:51 00:15 Jupiter 1.93524387852448 1.93524168163542 1.93524607631658 2.24322809790496 2.0388004212529 2507088.160401983 15.3111175328015 2603.65812287818 60.3045188896825 74.1706500014188 1082018.46123525 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
2166-May-16 15:52 00:08 Jupiter 1.3303905796536 1.33038751979689 1.33039364043882 4.54283973780836 4.40046006186965 2512311.160884181 8.46658932039389 1835.30156901444 33.4460101608456 -85.2064910618751 2305911.74955348 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43
2179-Sep-30 15:06 00:12 Jupiter 1.78050036096696 1.78048930357268 1.78051141837885 4.57102420161056 4.46573835015775 2517196.129110227 11.4959697218352 623.602716741497 141.054386746339 27.0656536548071 1397096.99364462 T 17 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:55 2020-Feb-24 16:43

Alternate Designations
 2001 XR208 = 2004 KE5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-01 06:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin