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20183 (1997 AD1)
Classification: Main-belt Asteroid          SPK-ID: 2020183
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677957081540917 5.0705e-08  
a 2.476813699044105 9.3076e-09 au
q 2.061214990447244 1.235e-07 au
i 3.981335564841175 2.8176e-06 deg
node 118.6565110906037 7.4325e-05 deg
peri 295.5169530336535 7.5848e-05 deg
M 48.36979265271262 1.2486e-05 deg
tp 2458809.202117240778
(2019-Nov-21.70211724)
4.9796e-05 TDB
period 1423.765412594919
3.90
8.0255e-06
2.197e-08
d
yr
n .2528506429608183 1.4253e-09 deg/d
Q 2.892412407640966 1.0869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1582  
   data-arc span      8514 days (23.31 yr)  
   first obs. used      1997-01-02  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:09:52  

Additional Information
 Earth MOID = 1.07646 au 
 Jupiter MOID = 2.46004 au 
 T_jup = 3.458 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO412335  

20183 (1997 AD1)          Discovered 1997-Jan-02 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AD1 = 1998 HJ26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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