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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554681477441626 3.667e-08  
a 2.8648899117154 1.0341e-08 au
q 2.419490783650069 1.0632e-07 au
i 24.95490921732195 4.3583e-06 deg
node 235.0420567007687 9.4899e-06 deg
peri 31.75733685794281 1.6316e-05 deg
M 315.2092970019017 1.3758e-05 deg
tp 2459220.866570088280
(2021-Jan-06.36657009)
6.8017e-05 TDB
period 1771.1703528107
4.85
9.5894e-06
2.625e-08
d
yr
n .2032554347066108 1.1005e-09 deg/d
Q 3.310289039780731 1.1948e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2356  
   data-arc span      31834 days (87.16 yr)  
   first obs. used      1933-04-20  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41457  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:28:38  

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

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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 1.83005791521715 1.8300573085253 1.83005852191493 6.73269813885 6.66359856660629 2438663.819893836 0.668274528940845 191.491660434847 14.379839229247 -82.0309281900711 5210583.61249633 T 42 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:51 2020-Jun-23 15:28
1989-Mar-01 23:27 < 00:01 Jupiter 1.81493409037322 1.81493370563927 1.81493447510717 6.68552654802043 6.61535132741194 2447587.476795849 0.335599050572587 96.8001228349679 18.870798315017 88.797339703114 5315926.15303679 T 42 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:51 2020-Jun-23 15:28
2071-Mar-28 03:58 < 00:01 Jupiter 1.93107784335181 1.9310770216675 1.93107866504238 6.69481251591449 6.62897133812427 2477563.664938862 0.776880136123818 193.80182779614 16.3681023161511 -78.7724434983618 5220503.67860891 T 42 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:51 2020-Jun-23 15:28
2095-Sep-07 18:36 00:01 Jupiter 1.77323803567181 1.77323763579186 1.77323843555367 6.71795646316949 6.64647268482281 2486493.275168353 1.02774507465025 226.018323303928 18.028418576191 87.9409881438353 5384137.56954789 T 42 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:51 2020-Jun-23 15:28

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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