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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2231566512912346 2.4719e-08  
a 2.332008955051375 7.0963e-09 au
q 1.811605645860938 6.034e-08 au
i 25.10741168665389 1.074e-06 deg
node 69.33061737633996 6.1768e-06 deg
peri 121.2637003185086 8.3176e-06 deg
M 6.544382282798646 4.8132e-06 deg
tp 2459372.853879029748
(2021-Jun-07.35387903)
1.7321e-05 TDB
period 1300.749739462085
3.56
5.9373e-06
1.626e-08
d
yr
n .2767634611626947 1.2633e-09 deg/d
Q 2.85241226424181 8.6799e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2127  
   data-arc span      16294 days (44.61 yr)  
   first obs. used      1976-11-17  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43978  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:40:30  

Additional Information
 Earth MOID = .894296 au 
 Jupiter MOID = 2.3381 au 
 T_jup = 3.413 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.07   n/a MPO614063  
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

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