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JPL Small-Body Database Browser
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173952 (2001 XJ7)
Classification: Main-belt Asteroid          SPK-ID: 2173952
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08155408994777584 4.6218e-08  
a 3.111595677088531 2.96e-08 au
q 2.857832323358143 1.4529e-07 au
i 9.34042644415244 5.3465e-06 deg
node 250.1330243366538 3.4581e-05 deg
peri 186.6841690919616 5.0153e-05 deg
M 134.2987645165977 3.6164e-05 deg
tp 2458252.601464730098
(2018-May-14.10146473)
0.00019908 TDB
period 2004.80975135024
5.49
2.8607e-05
7.832e-08
d
yr
n .1795681608978308 2.5623e-09 deg/d
Q 3.36535903081892 3.2014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      6380 days (17.47 yr)  
   first obs. used      2001-11-09  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:22:04  

Additional Information
 Earth MOID = 1.87322 au 
 Jupiter MOID = 1.89566 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457064.5 (2015-Feb-11.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08270109928990046 4.622e-08  
q 2.854263773942829 1.4543e-07 au
tp 2456250.600173308616
(2012-Nov-19.10017331)
0.0001929 TDB
node 250.1573088934228 3.4575e-05 deg
peri 187.3828757631995 4.977e-05 deg
i 9.34170589072864 5.3474e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      6380 days (17.47 yr)  
   first obs. used      2001-11-09  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:22:04  

Additional Information
 Jupiter MOID = 1.89566 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.136274757605726E-15 -6.603377336276184E-15 -3.435220424915443E-13 -4.1028197714864E-15 -4.930845948940119E-14 -8.901121839297072E-16
q -6.603377336276184E-15 2.114880863011177E-14 1.287709646567723E-12 9.238925641077121E-15 2.552698161980364E-13 3.397898981194991E-15
tp -3.435220424915443E-13 1.287709646567723E-12 3.72095716492781E-8 1.881501022295495E-11 6.936348038412459E-9 -4.476410663888305E-13
node -4.1028197714864E-15 9.238925641077121E-15 1.881501022295495E-11 1.195410012294093E-9 -1.176115213477389E-9 -5.346444048378319E-12
peri -4.930845948940119E-14 2.552698161980364E-13 6.936348038412459E-9 -1.176115213477389E-9 2.477083988125091E-9 5.230381600864453E-12
i -8.901121839297072E-16 3.397898981194991E-15 -4.476410663888305E-13 -5.346444048378319E-12 5.230381600864453E-12 2.859423579689567E-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 15.1   n/a MPO433119  

173952 (2001 XJ7)          Discovered 2001-Dec-07 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ 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
1961-Mar-16 17:20 00:02 Jupiter 1.9139597508326 1.9139591918298 1.91396030983539 3.4750795499137 3.34530690174604 2437375.222204376 2.42264306497265 96.9824027351216 27.584481802476 -88.912807420013 2742293.83282115 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 10:22:07 2019-Jul-13 10:22
2033-Jan-09 05:31 < 00:01 Jupiter 1.94385694716935 1.94385636550686 1.94385752883184 3.14922241964933 3.0076760758288 2463606.729910155 0.887068638474397 106.914745324175 25.5483356046206 89.4824385329148 2802576.96694154 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 10:22:07 2019-Jul-13 10:22
2043-Mar-20 09:19 00:01 Jupiter 1.96648790968999 1.96648733576882 1.96648848361173 3.89299751148533 3.78073703053334 2467328.887929805 1.23111382261868 106.116239396566 21.0707128463296 81.7450151175537 2905808.58057869 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 10:22:07 2019-Jul-13 10:22
2104-Nov-15 10:04 00:04 Jupiter 1.98573459518299 1.98573388606962 1.9857353042993 3.07747622897169 2.93560086904142 2489848.919539668 4.33874001586546 273.823412017594 25.3329484753662 88.1877176558073 2719157.17421624 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 10:22:07 2019-Jul-13 10:22
2114-Dec-29 16:40 00:04 Jupiter 1.92783416666453 1.9278335436866 1.92783478964464 3.63882020942223 3.51600382140867 2493545.194585665 4.38092466604098 193.517402648044 21.7821317411075 86.7933968183333 2261332.68248213 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 10:22:07 2019-Jul-13 10:22
2186-Oct-18 04:51 00:08 Jupiter 1.92315472858189 1.92315414650824 1.92315531065576 3.26088879632125 3.12290377124246 2519770.701997912 7.89115997330922 142.365829434875 33.3485828603922 79.1770239671862 1645745.42031295 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 10:22:07 2019-Jul-13 10:22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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