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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1678825624351593 5.0688e-08  
a 2.476623391890401 8.9467e-09 au
q 2.060841510672984 1.2349e-07 au
i 3.981368885311841 2.7607e-06 deg
node 118.6563402221769 7.2994e-05 deg
peri 295.480381461396 7.435e-05 deg
M 98.96850771414432 1.1935e-05 deg
tp 2458809.134171002141
(2019-Nov-21.63417100)
4.7887e-05 TDB
period 1423.60132221225
3.90
7.714e-06
2.112e-08
d
yr
n .2528797876083501 1.3703e-09 deg/d
Q 2.892405273107817 1.0449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1631  
   data-arc span      8838 days (24.20 yr)  
   first obs. used      1997-01-02  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50837  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:14:40  

Additional Information
 Earth MOID = 1.07531 au 
 Jupiter MOID = 2.46086 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 14.77   n/a E2021B10  

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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