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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2210872386301405 4.1914e-08  
a 2.349274995904155 1.0117e-08 au
q 1.829880274276871 1.007e-07 au
i 3.599483023317692 4.1135e-06 deg
node 60.51993936311735 7.4914e-05 deg
peri 329.6877669260693 7.5492e-05 deg
M 182.7023099862897 1.1165e-05 deg
tp 2459648.238614416132
(2022-Mar-09.73861442)
4.3646e-05 TDB
period 1315.222444081337
3.60
8.4959e-06
2.326e-08
d
yr
n .2737179567000581 1.7681e-09 deg/d
Q 2.868669717531439 1.2354e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      21771 days (59.61 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:15:01  

Additional Information
 Earth MOID = .836536 au 
 Jupiter MOID = 2.57391 au 
 T_jup = 3.523 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457035.5 (2015-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2194609697065942 4.1769e-08  
q 1.834475511700126 1.0026e-07 au
tp 2457015.831075487366
(2014-Dec-24.33107549)
3.4447e-05 TDB
node 60.59869920009536 7.498e-05 deg
peri 329.4466786904853 7.5574e-05 deg
i 3.597378573279972 4.1081e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      21771 days (59.61 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:15:01  

Additional Information
 Jupiter MOID = 2.57391 au 
 T_jup = 3.523 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.74468313123915E-15 -4.175402749673987E-15 -6.152465206918176E-13 -2.107597187430521E-15 -1.758493691857781E-13 -2.226979075450466E-15
q -4.175402749673987E-15 1.005176753826289E-14 1.556061581294984E-12 4.83404337273952E-15 4.420150857890108E-13 5.51995144561865E-15
tp -6.152465206918176E-13 1.556061581294984E-12 1.186589798424063E-9 4.523740085776434E-12 3.505874161528474E-10 1.590574520783092E-12
node -2.107597187430521E-15 4.83404337273952E-15 4.523740085776434E-12 5.622043499171848E-9 -5.609106373427379E-9 -1.190783795983178E-10
peri -1.758493691857781E-13 4.420150857890108E-13 3.505874161528474E-10 -5.609106373427379E-9 5.711485939477785E-9 1.192794545824819E-10
i -2.226979075450466E-15 5.51995144561865E-15 1.590574520783092E-12 -1.190783795983178E-10 1.192794545824819E-10 1.687668148519434E-11

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1906-Apr-01 15:34 < 00:01 Vesta 0.0404413632375419 0.0404383770820535 0.0404443506902623 6.13537634204839 6.13537586250533 2417302.148665865 0.639186089533858 416.049688544757 55.4037829001744 70.4398945645341 102822.597981093 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 18:15:03 2020-Nov-12 18:15

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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