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139290 (2001 KC2)
Classification: Main-belt Asteroid          SPK-ID: 2139290
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3054768709517039 4.1608e-08  
a 2.730098958280534 1.1728e-08 au
q 1.89611687111649 1.1419e-07 au
i 1.323802348146888 4.6201e-06 deg
node 5.27970549908535 0.00018503 deg
peri 239.0610060888303 0.00018527 deg
M 162.9476462541767 6.2452e-06 deg
tp 2458650.718507597456
(2019-Jun-16.21850760)
2.8811e-05 TDB
period 1647.653976210988
4.51
1.0617e-05
2.907e-08
d
yr
n .2184924779096341 1.4079e-09 deg/d
Q 3.564081045444578 1.5311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      9031 days (24.73 yr)  
   first obs. used      1996-02-14  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:30:07  

Additional Information
 Earth MOID = .883702 au 
 Jupiter MOID = 1.47279 au 
 T_jup = 3.285 
[ 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 16.22   n/a E2021B55  
diameter diameter 2.286 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.112   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

139290 (2001 KC2)          Discovered 2001-May-20 by Pravec, P., Kusnirak, P. at Ondrejov
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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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
1917-Oct-10 16:13 00:02 Jupiter 1.47639991865645 1.47639929308096 1.4764005442323 0.341112743564162 n/a 2421512.175625271 1.58373937491942 86.3564026164806 27.899764322701 80.1686768601411 7809815.21460337 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
1954-Jun-10 23:18 00:01 Jupiter 1.90767273568036 1.90767135413592 1.90767411722514 0.809945268980379 n/a 2434904.470741654 1.2668267453175 100.491279429388 58.0525007419989 63.113345387948 4567573.98994153 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
1975-Dec-23 00:07 < 00:01 Jupiter 1.69552558436445 1.69552462903754 1.6955265396915 0.424291559552298 n/a 2442769.504613745 0.868200602410529 98.8566985338729 45.700806616841 81.1753752984664 5497006.4215168 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
2012-Jul-30 04:55 < 00:01 Jupiter 1.45710758067311 1.45710721812717 1.45710794321909 0.368584438699736 n/a 2456138.705193284 0.212922068301591 71.9546989116662 17.8278953478117 -87.5327636926535 12212256.8900449 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
2049-Mar-16 07:52 < 00:01 Jupiter 1.80235754373141 1.8023565969174 1.80235849054747 0.487638584727489 n/a 2469516.827937863 0.75722065706902 210.433959301422 41.7413588735701 83.8590885501929 6422192.2187152 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
2070-Sep-30 14:43 00:01 Jupiter 1.7781904183107 1.77818908882029 1.77819174780152 0.722330752934547 n/a 2477385.112893054 1.16779449158077 90.538429025942 48.2200447823859 53.5773654524253 4768091.55515995 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
2107-May-25 07:12 00:01 Jupiter 1.45939068387675 1.45939023629396 1.45939113145984 0.35685225381694 n/a 2490769.800277639 1.44198888666168 100.625914480893 20.9687604606131 -85.5444237394354 10378245.4462148 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
2143-Dec-29 14:20 00:02 Jupiter 1.72792014413246 1.72791784057841 1.72792244802945 0.32983722258059 n/a 2504137.097132790 2.44672884812783 1335.29763496322 47.0077558291954 85.4949140848435 5480453.42448164 F 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
2165-Jul-08 06:33 00:03 Jupiter 1.87695200031396 1.87694900931369 1.87695499226879 1.14187345167176 0.633501315761491 2511998.773189097 3.03388941575262 5839.88829773817 330.616273834149 33.3441680328411 1787817.92979891 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 18:30:09 2021-Apr-13 18:30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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