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1914 Hartbeespoortdam (1930 SB1)
Classification: Main-belt Asteroid          SPK-ID: 2001914
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471375251610857 1.1955e-08  
a 2.405700812719291 5.7076e-09 au
q 2.051731948857762 2.8833e-08 au
i 5.683599842226579 6.5336e-07 deg
node 120.6834899287581 8.2346e-06 deg
peri 158.9577266882578 8.5709e-06 deg
M 120.6341428239659 6.6812e-06 deg
tp 2458743.802545358949
(2019-Sep-17.30254536)
2.5093e-05 TDB
period 1362.890138911117
3.73
4.8503e-06
1.328e-08
d
yr
n .2641445482081355 9.4004e-10 deg/d
Q 2.75966967658082 6.5474e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3454  
   data-arc span      33036 days (90.45 yr)  
   first obs. used      1930-09-28  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39775  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:06:35  

Additional Information
 Earth MOID = 1.03456 au 
 Jupiter MOID = 2.37023 au 
 T_jup = 3.501 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.06   n/a E2021B10  
diameter diameter 9.561 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.3398 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2015) http://www.asu.cas.cz/~ppravec/neo.htm]
[Franco, L.; Marchini, A.; Baj, G.; Papini, R.; et al. (2019) Minor Planet Bull. 46, 441-443.]
[Polakis, T. (2019) Minor Planet Bull. 46, 400-406.]
geometric albedo albedo 0.212   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1914 Hartbeespoortdam (1930 SB1)          Discovered 1930-Sep-28 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 SB1 = 1937 LK = 1952 LE = 1956 QA = 1970 EU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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