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6957 (1988 HA)
Classification: Main-belt Asteroid          SPK-ID: 2006957
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08475666607618447 4.4133e-08  
a 2.530877588346479 1.6855e-08 AU
q 2.316368841711297 1.1435e-07 AU
i 1.206486953876069 5.022e-06 deg
node 206.9754257882266 0.00022261 deg
peri 19.20647630224342 0.00022499 deg
M 200.7050063971247 3.3144e-05 deg
tp 2457651.235894395957
(2016-Sep-19.73589440)
0.00013673 JED
period 1470.635810228728
4.03
1.4691e-05
4.022e-08
d
yr
n .2447920807422805 2.4453e-09 deg/d
Q 2.745386334981661 1.8283e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1343  
   data-arc span      13969 days (38.25 yr)  
   first obs. used      1976-05-02  
   last obs. used      2014-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49678  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:09:29  

Additional Information
 Earth MOID = 1.30834 AU 
 T_jup = 3.445 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO279588  

6957 (1988 HA)          Discovered 1988-Apr-16 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 HA = 1976 JJ1 = 1986 WA7 = 1993 SS 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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