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117968 (9564 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117968
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2210614915508536 4.1737e-08  
a 2.349461760721073 1.0035e-08 au
q 1.830086239554378 1.0027e-07 au
i 3.599337988069481 4.1051e-06 deg
node 60.51983986330229 7.4695e-05 deg
peri 329.6502040030565 7.5271e-05 deg
M 237.4961614719028 1.1335e-05 deg
tp 2459648.108365483844
(2022-Mar-09.60836548)
4.3407e-05 TDB
period 1315.379285337457
3.60
8.4276e-06
2.307e-08
d
yr
n .2736853195218465 1.7535e-09 deg/d
Q 2.868837281887768 1.2254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      21771 days (59.61 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55305  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:55:06  

Additional Information
 Earth MOID = .835564 au 
 Jupiter MOID = 2.57497 au 
 T_jup = 3.523 
[ 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 16.48   n/a E2021B55  

117968 (9564 P-L)          Discovered 1960-Oct-17 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 9564 P-L = 2001 AA31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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