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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1083981440507887 2.6883e-08  
a 2.237740512134154 6.1474e-09 au
q 1.995173593751551 6.0127e-08 au
i 1.964519554258894 3.7653e-06 deg
node 153.46052418221 0.00010212 deg
peri 295.7230186041932 0.00010417 deg
M 251.2614188704756 2.1041e-05 deg
tp 2459569.812642223223
(2021-Dec-21.31264222)
7.191e-05 TDB
period 1222.680577761017
3.35
5.0383e-06
1.379e-08
d
yr
n .2944350360576063 1.2133e-09 deg/d
Q 2.480307430516758 6.8137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2893  
   data-arc span      26179 days (71.67 yr)  
   first obs. used      1949-04-20  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:04:02  

Additional Information
 Earth MOID = 1.0123 au 
 Jupiter MOID = 2.66908 au 
 T_jup = 3.628 
[ 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 13.31   n/a E2021B10  
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

[ show close-approach data ]
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 | Close-Approach Data ]
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