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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06946508016783449 8.1922e-08  
a 2.937582092377402 2.9094e-08 AU
q 2.73352271683081 2.4555e-07 AU
i 2.760232890435213 7.9292e-06 deg
node 136.23669978333 0.00016842 deg
peri 178.4405787534543 0.00018129 deg
M 202.6779973909557 6.8814e-05 deg
tp 2457804.156404887418
(2017-Feb-19.65640489)
0.00035142 JED
period 1839.007265108625
5.03
2.732e-05
7.48e-08
d
yr
n .1957577910812309 2.9082e-09 deg/d
Q 3.141641467923993 3.1115e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      7724 days (21.15 yr)  
   first obs. used      1994-01-02  
   last obs. used      2015-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51331  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:20:33  

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 13.0 mag n/a MPO250309  

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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