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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 ]

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03384063232299033 5.3603e-08  
a 2.965018764016099 2.2602e-08 au
q 2.864680654192263 1.6562e-07 au
i 9.661832441990047 8.172e-06 deg
node 179.9699835658434 2.5478e-05 deg
peri 70.19871462681688 0.00011971 deg
M 235.7267660467933 0.0001191 deg
tp 2459644.246225123315
(2022-Mar-05.74622512)
0.00061969 TDB
period 1864.831498081517
5.11
2.1323e-05
5.838e-08
d
yr
n .1930469323208865 2.2074e-09 deg/d
Q 3.065356873839935 2.3367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      15485 days (42.40 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59197  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:25:06  

Additional Information
 Earth MOID = 1.87011 au 
 Jupiter MOID = 1.93379 au 
 T_jup = 3.242 
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Orbital Elements at Epoch 2456663.5 (2014-Jan-06.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03710865119237496 5.3829e-08  
q 2.852643307127464 1.6686e-07 au
tp 2455910.024017823973
(2011-Dec-14.52401782)
0.00054292 TDB
node 180.069910099081 2.5531e-05 deg
peri 69.06233490424853 0.00010837 deg
i 9.650995612636159 8.165e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      15485 days (42.40 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59197  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:25:06  

Additional Information
 Jupiter MOID = 1.93379 au 
 T_jup = 3.242 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.89761371260736E-15 -8.910800564697442E-15 -1.908222560715888E-11 -5.006220567995449E-15 -3.68375085823705E-12 2.544558579979639E-16
q -8.910800564697442E-15 2.784228775263057E-14 6.054246944866039E-11 1.76553944290756E-14 1.171943201024549E-11 1.298758537663223E-15
tp -1.908222560715888E-11 6.054246944866039E-11 2.947631054911587E-7 3.640000822233054E-12 5.718971576526107E-8 -1.473119729034587E-11
node -5.006220567995449E-15 1.76553944290756E-14 3.640000822233054E-12 6.518507262693097E-10 -6.417535799378716E-10 6.974996778435015E-11
peri -3.68375085823705E-12 1.171943201024549E-11 5.718971576526107E-8 -6.417535799378716E-10 1.174466003993258E-8 -7.160683280902396E-11
i 2.544558579979639E-16 1.298758537663223E-15 -1.473119729034587E-11 6.974996778435015E-11 -7.160683280902396E-11 6.666693130088716E-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

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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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