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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03384062916605921 5.3537e-08  
a 2.965018762795455 2.2574e-08 au
q 2.864680662373287 1.6548e-07 au
i 9.661832040264397 8.1558e-06 deg
node 179.9699824678204 2.543e-05 deg
peri 70.19871952526988 0.00011966 deg
M 235.7267626480938 0.00011908 deg
tp 2459644.246242331348
(2022-Mar-05.74624233)
0.00061957 TDB
period 1864.831496929941
5.11
2.1296e-05
5.831e-08
d
yr
n .1930469324400974 2.2046e-09 deg/d
Q 3.065356863217624 2.3338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      15756 days (43.14 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:47:57  

Additional Information
 Earth MOID = 1.87011 au 
 Jupiter MOID = 1.93379 au 
 T_jup = 3.242 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456676.5 (2014-Jan-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03710472247705607 5.3774e-08  
q 2.852651492949992 1.6676e-07 au
tp 2455909.953584180811
(2011-Dec-14.45358418)
0.00054279 TDB
node 180.0699171585955 2.5483e-05 deg
peri 69.04951839388339 0.00010834 deg
i 9.650996984497123 8.1488e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      15756 days (43.14 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:47:57  

Additional Information
 Jupiter MOID = 1.93379 au 
 T_jup = 3.242 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.891676526242287E-15 -8.896269164436779E-15 -1.905716070251247E-11 -5.079267927424555E-15 -3.678734810554479E-12 2.238518571712337E-16
q -8.896269164436779E-15 2.780734584149897E-14 6.048610715042741E-11 1.78812693549812E-14 1.170811999116419E-11 1.366401541475678E-15
tp -1.905716070251247E-11 6.048610715042741E-11 2.946217731838752E-7 4.930247939803829E-12 5.716109750293001E-8 -1.425564036831214E-11
node -5.079267927424555E-15 1.78812693549812E-14 4.930247939803829E-12 6.493831188300575E-10 -6.390689238527874E-10 6.894333835170689E-11
peri -3.678734810554479E-12 1.170811999116419E-11 5.716109750293001E-8 -6.390689238527874E-10 1.173647799357702E-8 -7.07202705350562E-11
i 2.238518571712337E-16 1.366401541475678E-15 -1.425564036831214E-11 6.894333835170689E-11 -7.07202705350562E-11 6.640321028732094E-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 14.5   n/a MPO272850  
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 1.95450590983566 1.9545051828082 1.95450663686523 3.88505063239197 3.77185367775532 2421251.587487187 3.24923830424888 220.839647090096 27.6634645017707 84.2659166737893 1938878.41484047 T 19 CATAB v2.0f-lin.ifort 2020-Nov-12 23:47:59 2020-Nov-12 23:48
1952-Nov-28 14:19 00:02 Jupiter 1.97809271623224 1.97809202542794 1.97809340703733 3.75989582295138 3.64423014491757 2434345.096326998 2.08800250713123 135.144386045893 25.8954524051668 81.7532899287661 1993337.76136505 T 19 CATAB v2.0f-lin.ifort 2020-Nov-12 23:47:59 2020-Nov-12 23:48
2176-Nov-13 05:01 00:05 Jupiter 1.98142239575168 1.98142125880688 1.98142353271586 4.3346906476203 4.23492371859673 2516144.708766639 5.10119349149334 390.324477497977 30.1868026911459 -83.5824304805449 2173230.3855219 T 19 CATAB v2.0f-lin.ifort 2020-Nov-12 23:47:59 2020-Nov-12 23:48

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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