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8734 Warner (1997 AA)
Classification: Main-belt Asteroid          SPK-ID: 2008734
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04860310632653316 3.062e-08  
a 2.868464444280236 1.2952e-08 au
q 2.729048161901004 9.2866e-08 au
i 3.330932727577792 3.3307e-06 deg
node 92.82041997209389 6.0849e-05 deg
peri 296.445482143181 7.221e-05 deg
M 2.220760808832896 3.83e-05 deg
tp 2458989.553584795546
(2020-May-20.05358480)
0.00018878 TDB
period 1774.486229192073
4.86
1.2019e-05
3.291e-08
d
yr
n .2028756234213825 1.3741e-09 deg/d
Q 3.007880726659468 1.3582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2190  
   data-arc span      14384 days (39.38 yr)  
   first obs. used      1980-07-12  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51605  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:44:19  

Additional Information
 Earth MOID = 1.73587 au 
 Jupiter MOID = 2.21803 au 
 T_jup = 3.295 
[ 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 13.5   n/a MPO431600  
diameter diameter 4.914 km 0.502 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.319   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

8734 Warner           Discovered 1997 Jan. 1 by P. G. Comba at Prescott.
Named in honor of Brian D. Warner (b. 1952). For more than eight years he has published the Minor Planet Observer, a monthly newsletter with minor-planet finder charts and other news of interest to minor planet observers. In recent years he has taken up CCD imaging and contributed hundreds of astrometric observations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1997 AA = 1990 QJ17 = 1993 HN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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