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JPL Small-Body Database Browser
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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 
[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1938-Sep-28 08:03 < 00:01 Amphi 0.0362103629650569 0.0362041788475589 0.0362165473614205 9.61948366150886 9.61948364500489 2429169.835722698 0.463636298109141 347.298857600497 39.8465707658551 27.5901538344388 64454.1076020196 T 25 CATAB v2.0f-lin.ifort 2019-Dec-03 23:14:47 2019-Dec-03 23:14

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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