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470 Kilia (A901 HC)
Classification: Main-belt Asteroid          SPK-ID: 2000470
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 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09386886530260599 3.4143e-08  
a 2.404641100478927 6.2007e-09 au
q 2.178920168916961 8.3787e-08 au
i 7.227152359024212 3.7771e-06 deg
node 173.2251784608062 2.6896e-05 deg
peri 47.39630892646814 3.308e-05 deg
M 328.9467618267526 2.0183e-05 deg
tp 2459117.983863272639
(2020-Sep-25.48386327)
7.645e-05 TDB
period 1361.989707552848
3.73
5.2681e-06
1.442e-08
d
yr
n .2643191780405076 1.0224e-09 deg/d
Q 2.630362032040894 6.7828e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3358  
   data-arc span      43563 days (119.27 yr)  
   first obs. used      1901-04-21  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41289  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:16:57  

Additional Information
 Earth MOID = 1.17923 au 
 Jupiter MOID = 2.34464 au 
 T_jup = 3.507 
[ 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 10.0   n/a MPO502157 IRAS observations used: 28
diameter diameter 27.750 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 296.2 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D. (2009) Minor Planet Bull. 36, 157-158.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
[Pilcher, F.; Polakis, T. (2020) Minor Planet Bull. 47, 247-248.]
geometric albedo albedo 0.148   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.886   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=10.08, mean=10.64, max.=11.20) deg.
U-B UB 0.466   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=10.08, mean=10.64, max.=11.20) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

470 Kilia (A901 HC)          Discovered 1901-Apr-21 by Carnera, L. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A901 HC = 1932 TA = A902 RB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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