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JPL Small-Body Database Browser
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49466 Huanglin (1999 AX8)
Classification: Main-belt Asteroid          SPK-ID: 2049466
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1715481813861239 4.5592e-08  
a 2.762795068534546 1.8776e-08 au
q 2.288842598984893 1.3143e-07 au
i 10.31599726471443 4.9028e-06 deg
node 130.0501761450606 2.4948e-05 deg
peri 228.5301627284676 2.8566e-05 deg
M 249.9595154689125 1.6921e-05 deg
tp 2459113.209575271017
(2020-Sep-20.70957527)
8.2184e-05 TDB
period 1677.341279294547
4.59
1.7099e-05
4.681e-08
d
yr
n .2146253743611485 2.1879e-09 deg/d
Q 3.236747538084199 2.1997e-08 au
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      7430 days (20.34 yr)  
   first obs. used      1999-01-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52035  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:40:54  

Additional Information
 Earth MOID = 1.29765 au 
 Jupiter MOID = 2.22903 au 
 T_jup = 3.296 
[ 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 14.2   n/a MPO436130  

49466 Huanglin           Discovered 1999 Jan. 6 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Huang Lin (b. 1934) is an observational astrophysicist and has made significant contributions to developing the research of stellar physics at Beijing Astronomical Observatory. He shared a First Class National Science and Technology Progress Award for participating in building the first 2-meter class optical telescope in China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2019-12-12Last Updated: 2019-12-13

Alternate Designations
 1999 AX8 = 2000 GG84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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