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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236481917197051 5.8371e-08  
a 2.331472489097299 1.0246e-08 au
q 1.810042882866448 1.3749e-07 au
i 25.11154453721941 5.9727e-06 deg
node 69.33353590346684 1.2063e-05 deg
peri 121.3136370384948 1.4949e-05 deg
M 146.1939204892708 1.1115e-05 deg
tp 2458072.455307595973
(2017-Nov-14.95530760)
3.8214e-05 TDB
period 1300.300919691122
3.56
8.5715e-06
2.347e-08
d
yr
n .2768589905216061 1.825e-09 deg/d
Q 2.85290209532815 1.2537e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      15716 days (43.03 yr)  
   first obs. used      1976-11-17  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 23:14:31  

Additional Information
 Earth MOID = .892291 au 
 Jupiter MOID = 2.34036 au 
 T_jup = 3.413 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456753.5 (2014-Apr-06.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232476503880726 5.8447e-08  
q 1.811269435394524 1.3768e-07 au
tp 2456771.488333609155
(2014-Apr-23.98833361)
3.4571e-05 TDB
node 69.35715026468758 1.2067e-05 deg
peri 121.2784964974976 1.4954e-05 deg
i 25.10600187206867 5.9716e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      15716 days (43.03 yr)  
   first obs. used      1976-11-17  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 23:14:31  

Additional Information
 Jupiter MOID = 2.34036 au 
 T_jup = 3.413 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.416102203210471E-15 -8.03399229132186E-15 1.845220655849456E-13 3.543495497321582E-15 1.421298359316015E-13 -1.344351932905187E-14
q -8.03399229132186E-15 1.895666934552118E-14 -3.390822392313691E-13 -8.789328194188901E-15 -3.111151026252156E-13 3.296883661979754E-14
tp 1.845220655849456E-13 -3.390822392313691E-13 1.195160819762517E-9 -3.423714044473906E-12 3.284953989548348E-10 6.259746703692661E-12
node 3.543495497321582E-15 -8.789328194188901E-15 -3.423714044473906E-12 1.456036199985027E-10 -1.32381935974397E-10 -3.49343956239564E-11
peri 1.421298359316015E-13 -3.111151026252156E-13 3.284953989548348E-10 -1.32381935974397E-10 2.236212817136031E-10 3.269230077670501E-11
i -1.344351932905187E-14 3.296883661979754E-14 6.259746703692661E-12 -3.49343956239564E-11 3.269230077670501E-11 3.565985948560652E-11

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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