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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581545109701756 1.497e-08  
a 2.369429019150133 8.1546e-09 au
q 1.994693131347901 3.4721e-08 au
i 21.85057354269329 1.3366e-06 deg
node 163.853196637438 8.0996e-07 deg
peri 183.199098799709 7.2168e-06 deg
M 165.382387777873 6.0927e-06 deg
tp 2458588.500963107025
(2019-Apr-15.00096311)
2.1049e-05 TDB
period 1332.183288932706
3.65
6.8773e-06
1.883e-08
d
yr
n .2702330850347313 1.395e-09 deg/d
Q 2.744164906952365 9.4443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      10069 days (27.57 yr)  
   first obs. used      1993-08-20  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46011  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:08:58  

Additional Information
 Earth MOID = .985969 au 
 Jupiter MOID = 2.68321 au 
 T_jup = 3.433 
[ 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 14.25   n/a E2021B10  
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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