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JPL Small-Body Database Browser
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172051 (2001 XA125)
Classification: Main-belt Asteroid          SPK-ID: 2172051
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1521384034761564 4.701e-08  
a 2.998598873675138 2.5626e-08 au
q 2.542396828368802 1.3802e-07 au
i 2.710108883354267 5.5391e-06 deg
node 130.6973488566123 0.00012792 deg
peri 340.3843753376468 0.0001298 deg
M 170.6564524871752 2.1205e-05 deg
tp 2458101.424424021216
(2017-Dec-13.92442402)
0.00010906 TDB
period 1896.601052202734
5.19
2.4313e-05
6.657e-08
d
yr
n .18981324490034 2.4332e-09 deg/d
Q 3.454800918981474 2.9525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      8652 days (23.69 yr)  
   first obs. used      1995-09-19  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62674  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:42:51  

Additional Information
 Earth MOID = 1.55923 au 
 Jupiter MOID = 1.65975 au 
 T_jup = 3.234 
[ 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 16.1   n/a MPO436855  

172051 (2001 XA125)          Discovered 2001-Dec-14 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
1901-Aug-08 00:51 00:04 Jupiter 1.75054416697042 1.75054265924318 1.75054567469547 1.68850176016373 1.37233865289378 2415604.535207841 4.47422285725774 107.331448227144 59.4785619566053 70.92914520214 1086151.68714483 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
1938-May-12 07:53 00:03 Jupiter 1.67435573571652 1.67435507697172 1.67435639446198 1.70605649268077 1.3779947132125 2429030.828816568 2.96499357701112 186.753027761216 79.1765283725173 -70.172678035452 1334493.7697884 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
1975-Feb-19 18:43 00:02 Jupiter 1.86439258989427 1.86439158301735 1.86439359677141 2.749707140335 2.57919721789735 2442463.280131673 1.53089655861253 90.7033320525642 15.9738081938608 78.0865442935922 1509682.07568425 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
1983-Nov-25 13:08 00:01 Jupiter 1.94602488188261 1.94602411121652 1.94602565254838 2.27784602116763 2.07799588281116 2445664.047018725 1.21503930054714 66.2605646130126 12.2187842608187 89.6811761426226 1759242.92378012 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
2020-Sep-02 06:02 < 00:01 Jupiter 1.69032519747425 1.69032470871298 1.69032568623494 1.58662027768236 1.23091967395191 2459094.751439183 0.427625039575846 108.733831418959 80.0126963078631 61.8378464237012 1748434.24814231 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
2057-Jun-06 13:17 00:02 Jupiter 1.70362754458524 1.70362688075309 1.70362820841729 1.90997265151126 1.62899364622474 2472521.053742649 1.81024524236102 124.86954902693 40.6751796076406 -84.1201059348206 1413017.40506635 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
2094-Mar-16 09:36 00:03 Jupiter 1.9559436221483 1.95594186320916 1.95594538109011 3.24324329410832 3.10685144625277 2485952.900201672 3.16961444828435 159.164797004897 24.0778646371204 69.4675534442147 1604917.55222662 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
2102-Dec-21 19:31 00:04 Jupiter 1.84576331904019 1.84576139095982 1.84576524711731 1.97976366549147 1.73253060522576 2489154.313489954 3.59015941614689 73.8839329388628 17.0472167631394 -87.886505816419 732790.865576181 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
2139-Sep-28 11:04 00:05 Jupiter 1.65467053554262 1.65466984188422 1.65467122920714 1.57174265408784 1.2027381249729 2502583.960952857 4.98709160079188 274.850123517504 106.596044614296 -84.0387661352064 1673992.29945661 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43
2176-Jul-04 17:01 00:07 Jupiter 1.75933371987679 1.75933125556 1.75933618420949 2.21338106728691 1.98397722851181 2516013.208741358 6.60212187885239 345.124518791442 13.5202746514346 -87.6042454951323 1303704.06431035 T 10 CATAB v2.0f-lin.ifort 2020-Feb-24 16:42:54 2020-Feb-24 16:43

Alternate Designations
 2001 XA125 = 1995 SG61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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