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173988 (2001 XT163)
Classification: Outer Main-belt Asteroid          SPK-ID: 2173988
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08588765420853547 3.8628e-08  
a 3.220755524658008 2.8624e-08 au
q 2.944132387865951 1.2409e-07 au
i 3.026388898743825 5.5833e-06 deg
node 170.3177069483573 8.0539e-05 deg
peri 287.3616289519858 8.7904e-05 deg
M 60.6122129826805 3.3241e-05 deg
tp 2458645.038386944657
(2019-Jun-10.53838694)
0.0001951 TDB
period 2111.227661931577
5.78
2.8145e-05
7.706e-08
d
yr
n .1705169018440358 2.2732e-09 deg/d
Q 3.497378661450065 3.1082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7137 days (19.54 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55031  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:34:19  

Additional Information
 Earth MOID = 1.96286 au 
 Jupiter MOID = 1.64085 au 
 T_jup = 3.181 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457322.5 (2015-Oct-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0868646476822667 3.869e-08  
q 2.939550897796471 1.2435e-07 au
tp 2456537.727730339122
(2013-Sep-02.22773034)
0.00019572 TDB
node 170.3426713618513 8.0561e-05 deg
peri 287.9751888667219 8.775e-05 deg
i 3.026244126072497 5.5839e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7137 days (19.54 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55031  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:34:19  

Additional Information
 Jupiter MOID = 1.64085 au 
 T_jup = 3.181 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.496936540113743E-15 -4.706397582201366E-15 8.442645644979289E-13 -3.671107798475493E-15 1.48105917126115E-13 -8.358955036077783E-16
q -4.706397582201366E-15 1.546172244249874E-14 -3.694831566612503E-12 1.381717689186967E-14 -6.081407752533764E-13 2.914261255607259E-15
tp 8.442645644979289E-13 -3.694831566612503E-12 3.830487957716537E-8 -1.552885543604398E-11 6.820382306261896E-9 -8.737683743217105E-13
node -3.671107798475493E-15 1.381717689186967E-14 -1.552885543604398E-11 6.49005634943457E-9 -6.483117557548032E-9 -6.073282561031E-12
peri 1.48105917126115E-13 -6.081407752533764E-13 6.820382306261896E-9 -6.483117557548032E-9 7.700105168861181E-9 5.951932278168146E-12
i -8.358955036077783E-16 2.914261255607259E-15 -8.737683743217105E-13 -6.073282561031E-12 5.951932278168146E-12 3.118041030962419E-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 15.5   n/a MPO469866  

173988 (2001 XT163)          Discovered 2001-Dec-14 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
2047-Jun-22 11:47 00:01 Jupiter 1.91078924480241 1.91078863255468 1.91078985705025 3.84012258660781 3.72289850168719 2468883.991244829 1.28713842337921 67.1550885332031 20.50346776714 76.3905669511483 2984140.42062726 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2058-Oct-30 07:23 00:02 Jupiter 1.83172929209935 1.83172862267523 1.83172996152399 3.50331132841058 3.36873218508557 2473031.807417355 1.75648911563404 93.1414056488377 19.997834785661 79.7469351773965 2693416.54245502 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2070-Mar-22 14:57 00:02 Jupiter 1.77385262608215 1.77385197183344 1.77385328033176 3.22850114652442 3.07704578463895 2477193.122635600 2.24393245958074 120.444199358562 18.7668455953461 84.0979136931367 2528713.04090117 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2081-Aug-25 13:21 00:03 Jupiter 1.74407168348289 1.7440711130203 1.74407225394618 3.03567077889063 2.87123334224592 2481367.056355875 2.76769174891642 144.611752772382 17.0202194496336 88.5277371403387 2501783.78685655 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2093-Feb-07 01:55 00:03 Jupiter 1.73860630915581 1.73860582004824 1.73860679826327 2.92098560716611 2.74914302577447 2485550.580148582 3.35694469375647 162.324126064275 15.1586565163952 -87.0651406974965 2614648.13109975 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2104-Jul-28 07:18 00:04 Jupiter 1.75723971164597 1.75723913140425 1.75724029188998 2.88447826572837 2.71222737528404 2489738.804371606 4.02927065944692 168.642516380532 13.751318985942 -82.2862121131991 2876699.98492372 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2116-Jan-17 10:32 00:05 Jupiter 1.7900472784975 1.79004638569528 1.7900481713036 2.90768023933679 2.74011596430697 2493928.938558041 4.79152830164163 159.266938698365 13.8092248768902 -76.0795801472083 3211032.57644247 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2127-Jul-05 15:31 00:06 Jupiter 1.83560088107543 1.8355995459553 1.83560221619774 2.99078703805585 2.83230012656372 2498116.146493517 5.62324023468487 131.184916517791 18.9347737645223 -65.0853853923649 3137586.97585041 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2138-Dec-17 16:55 00:06 Jupiter 1.89924084288746 1.89923906049258 1.89924262528234 3.15085778777059 3.0059849904175 2502299.205179902 6.47061726922162 94.376109292582 36.2931518348207 -40.0663548538464 1757088.52964934 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
2150-May-25 08:32 00:07 Jupiter 1.975770606914 1.97576845809374 1.97577275573391 3.37945879519915 3.25012799338765 2506475.855686314 7.28804898555811 100.712456172496 47.2256164922268 26.8376319915154 1288397.65463514 T 17 CATAB v2.0f-lin.ifort 2020-May-21 03:34:35 2020-May-21 03:34
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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