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JPL Small-Body Database Browser
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385186 (1994 AW1)
Classification: Amor [NEO, PHA]          SPK-ID: 2385186
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 212 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07576570946549685 2.5645e-08  
a 1.10524495365064 5.124e-09 au
q 1.021505285604139 2.8913e-08 au
i 24.09677794854 3.7057e-06 deg
node 290.3652274580273 3.0487e-06 deg
peri 37.02111774338739 2.7888e-05 deg
M 58.57310545930729 2.3744e-05 deg
tp 2458531.447089644568
(2019-Feb-16.94708964)
2.7969e-05 TDB
period 424.4106152989621
1.16
2.9514e-06
8.08e-09
d
yr
n .8482351454532067 5.8987e-09 deg/d
Q 1.188984621697141 5.5122e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 1.664683364389536E-14 8.882E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
NN [SET] 0. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1624  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      11036 days (30.21 yr)  
   first obs. used      1986-12-29  
   last obs. used      2017-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .27629  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-Feb-13 08:43:30  

Additional Information
 Earth MOID = .0191793 au 
 Jupiter MOID = 3.99317 au 
 T_jup = 5.547 
[ show covariance matrix ]

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 17.6   n/a MPO437576  
diameter diameter 0.811 km 0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 2.5193 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 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.]
[Pravec, P.; Wolf, M.; Varady, M.; Barta, P. (1995) Earth, Moon, and Planets 71, 177-187.]
[Pravec, P.; Hahn, G. (1997) Icarus 127, 431-440.]
[Pravec, P.; et al. (2006) Icarus 181, 63-93.]
[Birlan, M.; Vaduvescu, O.; Tudorica, A.; Sonka, A.; et al. (2010) Astron. Astrophys. 511, A40.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 66-79.]
[Aznar Macias, A.; Predatu, M.; Vaduvescu, O.; Oey, J. (2018) arXiv:1801.09420. Romanian J. Phys. 62, 904 (2017).]
geometric albedo albedo 0.223   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B Sa   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)

385186 (1994 AW1)          Discovered 1994-Jan-11 by Lawrence, K. J., Helin, E. F. at Palomar
Reference: Last Updated: 2014-02-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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