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1673 van Houten (1937 TH)
Classification: Main-belt Asteroid          SPK-ID: 2001673
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1818379173416269 2.8831e-08  
a 3.101070477674249 1.1115e-08 au
q 2.53717828048436 8.9827e-08 au
i 3.589893294898764 3.6925e-06 deg
node 208.0174166281128 5.4522e-05 deg
peri 209.1696296157315 5.5627e-05 deg
M 58.45334240777201 1.01e-05 deg
tp 2458876.628501738439
(2020-Jan-28.12850174)
5.5815e-05 TDB
period 1994.646235296537
5.46
1.0724e-05
2.936e-08
d
yr
n .1804831321111335 9.7031e-10 deg/d
Q 3.664962674864139 1.3136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3046  
   data-arc span      30476 days (83.44 yr)  
   first obs. used      1937-10-11  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:40:10  

Additional Information
 Earth MOID = 1.54917 au 
 Jupiter MOID = 1.69651 au 
 T_jup = 3.193 
[ 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 12.24   n/a MPCxxxxx  
diameter diameter 20.733 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1673 van Houten (1937 TH)          Discovered 1937-Oct-11 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1937 TH = 1948 TZ1 = 1950 BK = 1953 RJ1 = 1959 XG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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