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43946 (1997 AR6)
Classification: Main-belt Asteroid          SPK-ID: 2043946
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188061532796245 3.7493e-08  
a 2.19855350724394 6.2352e-09 au
q 1.937351822268861 8.2127e-08 au
i 7.860418164419965 3.7725e-06 deg
node 270.8823546180975 2.7439e-05 deg
peri 197.4349498248227 3.1736e-05 deg
M 166.5610253557622 1.5063e-05 deg
tp 2458845.597337410791
(2019-Dec-28.09733741)
4.9674e-05 TDB
period 1190.704476683591
3.26
5.0654e-06
1.387e-08
d
yr
n .3023420227684788 1.2862e-09 deg/d
Q 2.45975519221902 6.976e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1359  
   data-arc span      12665 days (34.67 yr)  
   first obs. used      1986-11-04  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:55:21  

Additional Information
 Earth MOID = .955899 au 
 Jupiter MOID = 2.66338 au 
 T_jup = 3.645 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457065.5 (2015-Feb-12.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1185608697214637 3.7578e-08  
q 1.938080572982006 8.2367e-08 au
tp 2457655.302429349746
(2016-Sep-23.80242935)
4.9995e-05 TDB
node 270.9393228196893 2.7451e-05 deg
peri 197.5084864795075 3.1759e-05 deg
i 7.857853886105604 3.7721e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1359  
   data-arc span      12665 days (34.67 yr)  
   first obs. used      1986-11-04  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:55:21  

Additional Information
 Jupiter MOID = 2.66338 au 
 T_jup = 3.645 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.412079232415784E-15 -3.088119935828209E-15 6.871165139710266E-13 -1.639369585279435E-15 2.264376069282561E-13 -6.587782540619485E-16
q -3.088119935828209E-15 6.784279051144033E-15 -1.533437074452959E-12 3.4376021663509E-15 -5.08960269907183E-13 1.521630649973717E-15
tp 6.871165139710266E-13 -1.533437074452959E-12 2.499473073550739E-9 -4.924130274293833E-12 8.095427030119891E-10 -4.116389965875228E-13
node -1.639369585279435E-15 3.4376021663509E-15 -4.924130274293833E-12 7.535526457114563E-10 -7.478590182714453E-10 3.363766596464961E-11
peri 2.264376069282561E-13 -5.08960269907183E-13 8.095427030119891E-10 -7.478590182714453E-10 1.008604418540525E-9 -3.347447180974225E-11
i -6.587782540619485E-16 1.521630649973717E-15 -4.116389965875228E-13 3.363766596464961E-11 -3.347447180974225E-11 1.422871127494823E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.36   n/a E2021B10  
diameter diameter 2.002 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.441   0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43946 (1997 AR6)          Discovered 1997-Jan-07 by Urata, T. at Oohira
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AR6 = 1986 VU2 = 1999 TE13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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