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46291 (2001 KN54)
Classification: Main-belt Asteroid          SPK-ID: 2046291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03363948058975304 5.0879e-08  
a 2.964027201739773 1.8666e-08 au
q 2.864318866219347 1.5915e-07 au
i 9.664083076433755 7.8904e-06 deg
node 179.9639959796959 2.0905e-05 deg
peri 70.76334468712813 0.00011934 deg
M 311.6110159858849 0.00011943 deg
tp 2459647.033443235426
(2022-Mar-08.53344324)
0.0006192 TDB
period 1863.896120208771
5.10
1.7606e-05
4.82e-08
d
yr
n .1931438110186512 1.8244e-09 deg/d
Q 3.063735537260198 1.9293e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1048  
   data-arc span      15977 days (43.74 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5515  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:22:51  

Additional Information
 Earth MOID = 1.87007 au 
 Jupiter MOID = 1.93379 au 
 T_jup = 3.243 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457325.5 (2015-Oct-30.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03541052693200854 5.3035e-08  
q 2.86199124546519 1.6676e-07 au
tp 2457767.527415289527
(2017-Jan-14.02741529)
0.00056574 TDB
node 179.9931617601868 2.0914e-05 deg
peri 67.79419123378597 0.00011024 deg
i 9.658504515803115 7.8866e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1048  
   data-arc span      15977 days (43.74 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5515  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:22:51  

Additional Information
 Jupiter MOID = 1.93379 au 
 T_jup = 3.243 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.812661211527316E-15 -8.800975660799524E-15 -2.16311156317222E-11 -2.114170121776744E-15 -4.08660460214215E-12 7.569447049815059E-16
q -8.800975660799524E-15 2.780768356157472E-14 6.827160920214275E-11 3.645059802887831E-15 1.289131611673118E-11 -3.2425896724524E-15
tp -2.16311156317222E-11 6.827160920214275E-11 3.200565785079695E-7 2.135143121409138E-11 6.123816224802361E-8 -2.992667730164986E-12
node -2.114170121776744E-15 3.645059802887831E-15 2.135143121409138E-11 4.374030793436184E-10 -4.268931798141554E-10 4.613654631149122E-11
peri -4.08660460214215E-12 1.289131611673118E-11 6.123816224802361E-8 -4.268931798141554E-10 1.215388008645758E-8 -4.607507917841693E-11
i 7.569447049815059E-16 -3.2425896724524E-15 -2.992667730164986E-12 4.613654631149122E-11 -4.607507917841693E-11 6.219821652762833E-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 14.53   n/a E2021B10  
diameter diameter 4.139 km 1.430 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46291 (2001 KN54)          Discovered 2001-May-17 by JPL/NEAT at Haleakala
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ 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
1917-Jan-23 02:06 00:03 Jupiter 1.95450589864994 1.95450526273491 1.95450653456557 3.88505032212718 3.77185335815634 2421251.587305165 2.72637087131271 188.447454335594 25.7497537478291 85.6194765403734 2014247.87395682 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:56 2021-Jul-08 21:22
1952-Nov-28 14:19 00:02 Jupiter 1.97809269546367 1.97809209240651 1.97809329852105 3.75989542555986 3.64422973432851 2434345.096186006 1.76475713285751 119.570820695133 23.522342809045 83.7614525162381 2071855.92680739 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:56 2021-Jul-08 21:22
2176-Nov-13 05:01 00:04 Jupiter 1.98142234005516 1.98142137737617 1.98142330274485 4.33469041633725 4.23492347958529 2516144.709019754 4.20209485293639 322.404607933187 29.6423488274335 -84.0268594910592 2211430.31509672 T 24 CATAB v2.0g-lin.ifort 2021-Jul-08 21:22:56 2021-Jul-08 21:22

Alternate Designations
 2001 KN54 = 1977 RB11 = 1998 UW28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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