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14921 (1994 QA)
Classification: Main-belt Asteroid          SPK-ID: 2014921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232569450173109 2.4991e-08  
a 2.332278319726472 7.5047e-09 au
q 1.811580987134233 6.0817e-08 au
i 25.10753253779269 1.0856e-06 deg
node 69.33485480732674 6.238e-06 deg
peri 121.2593484534074 8.4505e-06 deg
M 312.3084642231711 5.0439e-06 deg
tp 2459372.848614642897
(2021-Jun-07.34861464)
1.8789e-05 TDB
period 1300.975115621835
3.56
6.2793e-06
1.719e-08
d
yr
n .2767155156752776 1.3356e-09 deg/d
Q 2.852975652318711 9.1802e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1802  
   data-arc span      16179 days (44.30 yr)  
   first obs. used      1976-11-17  
   last obs. used      2021-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46292  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 00:21:24  

Additional Information
 Earth MOID = .892784 au 
 Jupiter MOID = 2.33882 au 
 T_jup = 3.413 
[ 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 14.03   n/a E2021B10  
diameter diameter 3.658 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.9134 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Galad, A.; Kornos, L.; Gajdos, S. (2009) Minor Planet Bull. 36, 13-15.]
geometric albedo albedo 0.692   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14921 (1994 QA)          Discovered 1994-Aug-16 by Garradd, G. J. at Siding Spring
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1994 QA = 1950 GG = 1992 BV3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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