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JPL Small-Body Database Browser
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1264 Letaba (1933 HG)
Classification: Main-belt Asteroid          SPK-ID: 2001264
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554681539104906 3.9319e-08  
a 2.864889913376772 1.0885e-08 au
q 2.4194907673873 1.1283e-07 au
i 24.95491019852936 4.4326e-06 deg
node 235.0420602613773 9.917e-06 deg
peri 31.7573341020964 1.6523e-05 deg
M 315.2092955676414 1.4061e-05 deg
tp 2459220.866577336412
(2021-Jan-06.36657734)
6.9582e-05 TDB
period 1771.170354351373
4.85
1.0094e-05
2.764e-08
d
yr
n .2032554345298067 1.1584e-09 deg/d
Q 3.310289059366244 1.2577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2226  
   data-arc span      31785 days (87.02 yr)  
   first obs. used      1933-04-20  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:21:43  

Additional Information
 Earth MOID = 1.42943 au 
 Jupiter MOID = 1.78254 au 
 T_jup = 3.145 
[ 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 9.7   n/a MPO395002  
diameter diameter 66.040 km 0.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 32.74 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2003) Minor Planet Bull. 30, 1-2.]
[Brines, P.; Lozano, J.; Rodrigo, O.; Fornas, A.; et al. (2017) Minor Planet Bull. 44, 145-149.]
[Ferrero, A. (2017) Minor Planet Bull. 44, 142.]
geometric albedo albedo 0.041   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
SMASSII spectral type spec_B C   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)

1264 Letaba (1933 HG)          Discovered 1933-Apr-21 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1964-Sep-25 07:41 < 00:01 Jupiter 1.83005794332976 1.83005733293672 1.83005855372892 6.73269830150914 6.66359873201913 2438663.819880996 0.690713469320906 196.829415587007 14.891087539769 -82.2709868362936 5111905.83899726 T 41 CATAB v2.0f-lin.ifort 2020-May-20 01:21:56 2020-May-20 01:22
1989-Mar-01 23:27 < 00:01 Jupiter 1.81493404738709 1.81493362777743 1.81493446699676 6.68552673528372 6.61535151499081 2447587.476795860 0.34435449795499 96.8228078896334 20.6197331937462 88.7195811967685 5165289.4352393 T 41 CATAB v2.0f-lin.ifort 2020-May-20 01:21:56 2020-May-20 01:22
2071-Mar-28 03:58 < 00:01 Jupiter 1.93107782792167 1.93107695760331 1.93107869824695 6.69481270027505 6.62897152378725 2477563.664979575 0.819687938165734 203.673100306867 16.495446329995 -78.5920252278665 5124253.60531322 T 41 CATAB v2.0f-lin.ifort 2020-May-20 01:21:56 2020-May-20 01:22
2095-Sep-07 18:36 00:01 Jupiter 1.77323802252029 1.77323762005722 1.77323842498487 6.71795663691755 6.64647285990654 2486493.275214846 1.08017412544525 240.305234812277 18.6467218710463 88.3451557451154 5227091.1024735 T 41 CATAB v2.0f-lin.ifort 2020-May-20 01:21:56 2020-May-20 01:22

Alternate Designations
 1933 HG = 1930 WC = 1954 YB = 1962 HJ = 1964 VB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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