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2564 Kayala (1977 QX)
Classification: Main-belt Asteroid          SPK-ID: 2002564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1084073800248919 1.122e-08  
a 2.236928505116726 5.7228e-09 au
q 1.994428946574024 2.4575e-08 au
i 1.96491966869985 4.3139e-07 deg
node 153.4635266940761 1.3745e-05 deg
peri 295.9157039358185 1.6393e-05 deg
M 308.7924039443717 8.259e-06 deg
tp 2459570.323491876561
(2021-Dec-21.82349188)
2.828e-05 TDB
period 1222.015128528652
3.35
4.6895e-06
1.284e-08
d
yr
n .2945953708719239 1.1305e-09 deg/d
Q 2.479428063659428 6.3432e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2936  
   data-arc span      26365 days (72.18 yr)  
   first obs. used      1949-04-20  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44712  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:42:10  

Additional Information
 Earth MOID = 1.0119 au 
 Jupiter MOID = 2.66918 au 
 T_jup = 3.629 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456819.5 (2014-Jun-11.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087860231418655 1.1357e-08  
q 1.993907434134632 2.4909e-08 au
tp 2457124.112911635441
(2015-Apr-11.61291164)
2.5851e-05 TDB
node 153.5231702016322 1.3773e-05 deg
peri 295.4639796078028 1.6364e-05 deg
i 1.962139575609541 4.3116e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2936  
   data-arc span      26365 days (72.18 yr)  
   first obs. used      1949-04-20  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44712  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:42:10  

Additional Information
 Jupiter MOID = 2.66918 au 
 T_jup = 3.629 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.289864733670615E-16 -2.771830716096396E-16 -2.116199998908248E-13 4.238724941280168E-14 -1.111761045837885E-13 -1.331054043357077E-15
q -2.771830716096396E-16 6.204769082677666E-16 4.810616879192441E-13 -9.509261612063222E-14 2.514814472247759E-13 3.011730825848363E-15
tp -2.116199998908248E-13 4.810616879192441E-13 6.682805691750148E-10 -1.308462165726304E-11 2.277936468325042E-10 1.936730230659684E-12
node 4.238724941280168E-14 -9.509261612063222E-14 -1.308462165726304E-11 1.896953028152879E-10 -1.940458472097719E-10 -5.83007525378881E-13
peri -1.111761045837885E-13 2.514814472247759E-13 2.277936468325042E-10 -1.940458472097719E-10 2.677951345106612E-10 1.190160895828072E-12
i -1.331054043357077E-15 3.011730825848363E-15 1.936730230659684E-12 -5.83007525378881E-13 1.190160895828072E-12 1.858970141406724E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.32   n/a MPCxxxxx  
diameter diameter 6.174 km 0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.01 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
[Fauerbach, M. (2019) Minor Planet Bull. 46, 418-421.]
[Carreño, A.; Fornas, G.; Arce, E.; Mas, V. (2020) Minor Planet Bull. 47, 7-10.]
geometric albedo albedo 0.267   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2564 Kayala (1977 QX)          Discovered 1977-Aug-19 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1977 QX = 1942 DG = 1949 HL = 1950 PJ = 1954 XB = 1979 FF2 = 1979 FO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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