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15784 (1993 QZ)
Classification: Main-belt Asteroid          SPK-ID: 2015784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580544609995914 3.9877e-08  
a 2.369492503519903 8.8569e-09 au
q 1.994983643033492 9.218e-08 au
i 21.84851885403323 4.022e-06 deg
node 163.8565728497171 1.1111e-05 deg
peri 183.1750075642645 1.6943e-05 deg
M 111.37135716213 1.375e-05 deg
tp 2458588.352711835229
(2019-Apr-14.85271184)
5.0071e-05 TDB
period 1332.236829289257
3.65
7.4696e-06
2.045e-08
d
yr
n .2702222248217371 1.5151e-09 deg/d
Q 2.744001364006313 1.0257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1788  
   data-arc span      9924 days (27.17 yr)  
   first obs. used      1993-08-20  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:23  

Additional Information
 Earth MOID = .988049 au 
 Jupiter MOID = 2.68268 au 
 T_jup = 3.433 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457305.5 (2015-Oct-10.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1590520263838265 4.0001e-08  
q 1.992156634890348 9.2566e-08 au
tp 2457255.794133630995
(2015-Aug-21.29413363)
4.761e-05 TDB
node 163.9154297160646 1.1099e-05 deg
peri 182.9562872890836 1.6848e-05 deg
i 21.86435021724588 4.0245e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1788  
   data-arc span      9924 days (27.17 yr)  
   first obs. used      1993-08-20  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:23  

Additional Information
 Jupiter MOID = 2.68268 au 
 T_jup = 3.433 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.600049939512296E-15 -3.692156247885231E-15 4.445894777982416E-13 1.034963292995652E-14 6.611237867183399E-14 -1.160407470282968E-15
q -3.692156247885231E-15 8.5684870160999E-15 -9.850182588194253E-13 -2.272103934157914E-14 -1.427546042039569E-13 2.875535021176816E-15
tp 4.445894777982416E-13 -9.850182588194253E-13 2.266666180412861E-9 -6.51216033552924E-13 6.181176154302109E-10 -5.28432926345407E-12
node 1.034963292995652E-14 -2.272103934157914E-14 -6.51216033552924E-13 1.231981723190609E-10 -1.14103978698806E-10 6.238984624677164E-12
peri 6.611237867183399E-14 -1.427546042039569E-13 6.181176154302109E-10 -1.14103978698806E-10 2.838393266412824E-10 -7.263263117331037E-12
i -1.160407470282968E-15 2.875535021176816E-15 -5.28432926345407E-12 6.238984624677164E-12 -7.263263117331037E-12 1.619693954834979E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO452394  
diameter diameter 4.228 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15784 (1993 QZ)          Discovered 1993-Aug-20 by Helin, E. F. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 QZ = 1996 LR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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