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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816958418054427 3.3833e-08  
a 3.100753281647106 1.2228e-08 au
q 2.537359303907246 1.0749e-07 au
i 3.589966614553728 4.2274e-06 deg
node 208.0268620658959 5.5572e-05 deg
peri 209.1719612670438 5.6654e-05 deg
M 22.35634651577343 1.024e-05 deg
tp 2458876.649553529651
(2020-Jan-28.14955353)
5.664e-05 TDB
period 1994.340206610598
5.46
1.1797e-05
3.23e-08
d
yr
n .1805108269926643 1.0678e-09 deg/d
Q 3.664147259386966 1.445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2638  
   data-arc span      30336 days (83.06 yr)  
   first obs. used      1937-10-11  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46402  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:16:36  

Additional Information
 Earth MOID = 1.55009 au 
 Jupiter MOID = 1.69645 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 12.2   n/a MPO502169  
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

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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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