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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236481909672064 5.8545e-08  
a 2.331472489368333 1.0302e-08 au
q 1.810042884831296 1.3796e-07 au
i 25.11154412584924 6.0272e-06 deg
node 69.33353537593911 1.213e-05 deg
peri 121.3136368870198 1.5141e-05 deg
M 146.1939207936213 1.1155e-05 deg
tp 2458072.455306404598
(2017-Nov-14.95530640)
3.84e-05 TDB
period 1300.300919917862
3.56
8.6182e-06
2.36e-08
d
yr
n .2768589904733287 1.835e-09 deg/d
Q 2.85290209390537 1.2606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1155  
   data-arc span      15689 days (42.95 yr)  
   first obs. used      1976-11-17  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50961  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:52:49  

Additional Information
 Earth MOID = .892291 au 
 Jupiter MOID = 2.34036 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 13.9   n/a MPO395148  
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. 2019-January); 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

[ show close-approach data ]
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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