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19988 (1990 QW3)
Classification: Main-belt Asteroid          SPK-ID: 2019988
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1541557857128167 4.6847e-08  
a 2.141409088515032 9.0998e-09 au
q 1.81129848794243 1.0053e-07 au
i 1.784240833358587 4.8438e-06 deg
node 317.6981192090236 0.00015513 deg
peri 341.9058097449237 0.00015643 deg
M 127.7057339369425 1.9165e-05 deg
tp 2457194.472185193539
(2015-Jun-20.97218519)
6.1278e-05 JED
period 1144.584575994845
3.13
7.2958e-06
1.997e-08
d
yr
n .3145245948182524 2.0048e-09 deg/d
Q 2.471519689087633 1.0503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      10323 days (28.26 yr)  
   first obs. used      1987-09-29  
   last obs. used      2016-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51554  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:26:47  

Additional Information
 Earth MOID = .795386 au 
 Jupiter MOID = 2.71418 au 
 T_jup = 3.697 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO347679  

19988 (1990 QW3)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QW3 = 1987 SA5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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