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1693 Hertzsprung (1935 LA)
Classification: Main-belt Asteroid          SPK-ID: 2001693
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2736238986070703 2.8758e-08  
a 2.795545806813713 8.2301e-09 au
q 2.030617664418697 7.9024e-08 au
i 11.93901117099624 3.4962e-06 deg
node 69.98367793178936 1.9168e-05 deg
peri 234.7335373576101 2.0535e-05 deg
M 57.40357404408699 8.1406e-06 deg
tp 2458928.270755104336
(2020-Mar-19.77075510)
3.8149e-05 TDB
period 1707.254814607387
4.67
7.5393e-06
2.064e-08
d
yr
n .2108648321971716 9.3119e-10 deg/d
Q 3.560473949208729 1.0482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3019  
   data-arc span      31303 days (85.70 yr)  
   first obs. used      1935-05-05  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:57:28  

Additional Information
 Earth MOID = 1.03977 au 
 Jupiter MOID = 1.78826 au 
 T_jup = 3.241 
[ 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 11.22   n/a E2021B10 IRAS observations used: 5
diameter diameter 37.772 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.825 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Barucci, M.A.; Di Martino, M.; Fulchignoni, M. (1992) Astron. J. 103, 1679-1686.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.051   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.762   0.048 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=6.40, mean=8.94, max.=12.24) deg.
U-B UB 0.358   0.048 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.74, mean=9.79, max.=12.24) deg.
Tholen spectral type spec_T CBU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1693 Hertzsprung (1935 LA)          Discovered 1935-May-05 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1935 LA = 1930 HG = 1944 HA = 1950 VM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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