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17558 (1994 AA1)
Classification: Main-belt Asteroid          SPK-ID: 2017558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026273358883876 1.7259e-08  
a 2.39188058629246 7.3615e-09 au
q 2.14640825395811 4.2076e-08 au
i 4.415015315007872 4.2264e-07 deg
node 148.0352991316776 9.6618e-06 deg
peri 319.6548984914812 1.2768e-05 deg
M 102.5285753914708 6.2495e-06 deg
tp 2458815.686685721666
(2019-Nov-28.18668572)
2.3422e-05 TDB
period 1351.162762295873
3.70
6.2377e-06
1.708e-08
d
yr
n .2664371828811313 1.23e-09 deg/d
Q 2.63735291862681 8.117e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2214  
   data-arc span      15148 days (41.47 yr)  
   first obs. used      1978-12-22  
   last obs. used      2020-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:06:10  

Additional Information
 Earth MOID = 1.16518 au 
 Jupiter MOID = 2.45216 au 
 T_jup = 3.520 
[ 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 14.22   n/a E2021B10  

17558 (1994 AA1)          Discovered 1994-Jan-04 by Kushida, Y., Muramatsu, O. at Yatsugatake
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 AA1 = 1978 YT = 1987 FO = 1996 TG40 = 1998 FP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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