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JPL Small-Body Database Browser
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2062 Aten (1976 AA)
Classification: Aten [NEO]          SPK-ID: 2002062
[ 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 2455926.5 (2011-Dec-31.0) TDB
Reference: JPL 148 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1827171340905242 4.0606e-09  
a .9667898316324987 8.7389e-10 au
q .790140764328748 3.5933e-09 au
i 18.93368681084476 6.0761e-06 deg
node 108.6003764318441 5.23e-06 deg
peri 148.0354055966093 4.778e-06 deg
M 172.267762763347 2.4686e-06 deg
tp 2455760.350877980336
(2011-Jul-17.85087798)		 2.3389e-06 TDB
period 347.2134482250642
0.95		 4.7078e-07
1.289e-09		 d
yr
n 1.036826199677172 1.4058e-09 deg/d
Q 1.143438898936249 1.0336e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.196928636811954E-14 1.63E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
   Orbit Determination Parameters
   # obs. used (total)      818  
   # delay obs. used      5  
   # Doppler obs. used      2  
   data-arc span      21601 days (59.14 yr)  
   first obs. used      1955-12-17  
   last obs. used      2015-02-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   norm. resid. RMS      .43362  
   source      ORB  
   producer      Giorgini  
   solution date      2015-Feb-24 14:25:50  

Additional Information
 Earth MOID = .113146 au 
 Jupiter MOID = 3.91861 au 
 T_jup = 6.184 
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Orbit Covariance (7×7)
  e q tp node peri i A2
e 1.64880667579072E-17 -1.438426796369435E-17 1.036974913203687E-16 -1.430857532822363E-14 1.742677328899935E-14 -1.173917292740633E-14 2.655131503750284E-24
q -1.438426796369435E-17 1.291212583723611E-17 1.340991686874261E-16 1.242985813181308E-14 -1.425771537203464E-14 1.020749597738136E-14 -1.603535030913277E-24
tp 1.036974913203687E-16 1.340991686874261E-16 5.470333589380742E-12 8.546969285052522E-12 -1.905671738521953E-12 -1.202038694804977E-11 5.216934483147241E-22
node -1.430857532822363E-14 1.242985813181308E-14 8.546969285052522E-12 2.735281058574395E-11 -2.023408938836517E-11 -9.029453767302799E-12 -2.405364267648085E-21
peri 1.742677328899935E-14 -1.425771537203464E-14 -1.905671738521953E-12 -2.023408938836517E-11 2.282895714981195E-11 -6.910199836333656E-12 4.773598634337054E-21
i -1.173917292740633E-14 1.020749597738136E-14 -1.202038694804977E-11 -9.029453767302799E-12 -6.910199836333656E-12 3.691857942203329E-11 -1.868205437224863E-21
A2 2.655131503750284E-24 -1.603535030913277E-24 5.216934483147241E-22 -2.405364267648085E-21 4.773598634337054E-21 -1.868205437224863E-21 2.658012933012875E-30

[ 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 16.80   n/a PDS3 (MPC 17264)  
diameter diameter 1.1 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 40.77 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Mottola, S.; De Angelis, G.; Di Martino, M.; Erikson, A.; et al. (1995) Icarus 117, 62-70; Mottola, S.; De Angelis, G.; Di Martino, M.; Erikson, A.; Harris, A.W.; Hahn, G.; Neukum, G.; Pravec, M.; Wolf, M. (1995) Lunar & Planetary Science XXVI, 1003-1004.]
geometric albedo albedo 0.26   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV 0.930   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=59.82 deg.
U-B UB 0.460   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=59.82 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Sr   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2062 Aten (1976 AA)          Discovered 1976-Jan-07 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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