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9977 (1994 AH)
Classification: Main-belt Asteroid          SPK-ID: 2009977
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07030921370376084 8.1469e-08  
a 2.934670112891343 2.6188e-08 au
q 2.728335764774026 2.4617e-07 au
i 2.760758994834747 7.845e-06 deg
node 136.2427013762801 0.00016078 deg
peri 179.110298977775 0.00017366 deg
M 319.6034043265829 6.731e-05 deg
tp 2457806.553325195623
(2017-Feb-22.05332520)
0.0003434 JED
period 1836.27347388676
5.03
2.4579e-05
6.729e-08
d
yr
n .1960492296596779 2.6242e-09 deg/d
Q 3.141004461008661 2.8029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      7858 days (21.51 yr)  
   first obs. used      1994-01-02  
   last obs. used      2015-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50016  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:29:24  

Additional Information
 Earth MOID = 1.71403 au 
 Jupiter MOID = 2.04973 au 
 T_jup = 3.270 
[ 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 13.1 mag n/a MPO337342  

9977 (1994 AH)          Discovered 1994-Jan-02 by Kobayashi, T. at Oizumi
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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