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101560 (1999 AA12)
Classification: Main-belt Asteroid          SPK-ID: 2101560
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0611556329612355 3.952e-08  
a 3.103664024791125 1.9724e-08 au
q 2.913857486856008 1.2179e-07 au
i 1.158314754660319 4.2404e-06 deg
node 271.1268472595528 0.00026425 deg
peri 148.7906313584101 0.00026801 deg
M 58.09586410229172 4.4166e-05 deg
tp 2458878.205276721256
(2020-Jan-29.70527672)
0.00024454 TDB
period 1997.149059975354
5.47
1.9038e-05
5.212e-08
d
yr
n .1802569508779893 1.7184e-09 deg/d
Q 3.293470562726242 2.0931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      8562 days (23.44 yr)  
   first obs. used      1997-10-02  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55874  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:23  

Additional Information
 Earth MOID = 1.92564 au 
 Jupiter MOID = 1.92341 au 
 T_jup = 3.218 
[ 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 15.78   n/a MPCxxxxx  

101560 (1999 AA12)          Discovered 1999-Jan-07 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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