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120672 (1997 AK)
Classification: Main-belt Asteroid          SPK-ID: 2120672
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2699766105677581 4.6601e-08  
a 2.664356771592555 1.2477e-08 au
q 1.945042761054742 1.2009e-07 au
i 2.1756635377549 5.2933e-06 deg
node 322.021080589695 0.0001747 deg
peri 173.4387045323967 0.00017521 deg
M 129.3293884807408 1.3578e-05 deg
tp 2458429.834367904348
(2018-Nov-07.33436790)
5.8019e-05 TDB
period 1588.499180022241
4.35
1.1158e-05
3.055e-08
d
yr
n .2266290121691844 1.5919e-09 deg/d
Q 3.383670782130368 1.5845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      9512 days (26.04 yr)  
   first obs. used      1993-04-16  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55512  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:28:47  

Additional Information
 Earth MOID = .959048 au 
 Jupiter MOID = 1.66465 au 
 T_jup = 3.330 
[ 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 16.2   n/a MPO436582  
diameter diameter 1.368 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.285   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120672 (1997 AK)          Discovered 1997-Jan-02 by Kobayashi, T. at Oizumi
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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