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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06946507058292865 8.0963e-08  
a 2.937582085319612 2.699e-08 AU
q 2.733522738419738 2.4409e-07 AU
i 2.760234071674934 7.8757e-06 deg
node 136.2365994843466 0.00016094 deg
peri 178.4406849181967 0.00017425 deg
M 202.6779942333106 6.8456e-05 deg
tp 2457804.156418121506
(2017-Feb-19.65641812)
0.00035001 JED
period 1839.007258481068
5.03
2.5345e-05
6.939e-08
d
yr
n .195757791786718 2.6979e-09 deg/d
Q 3.141641432219485 2.8865e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      7837 days (21.46 yr)  
   first obs. used      1994-01-02  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4994  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:03:31  

Additional Information
 Earth MOID = 1.72055 AU 
 T_jup = 3.269 
[ 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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