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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813772180508106 3.5164e-08  
a 3.099509567681666 1.2693e-08 au
q 2.537329144973695 1.1213e-07 au
i 3.59049086339498 4.4047e-06 deg
node 208.0292731147917 5.7238e-05 deg
peri 209.2202340684862 5.8316e-05 deg
M 310.0852410395189 1.0625e-05 deg
tp 2458876.853122659633
(2020-Jan-28.35312266)
5.9101e-05 TDB
period 1993.140430393235
5.46
1.2243e-05
3.352e-08
d
yr
n .1806194859681684 1.1095e-09 deg/d
Q 3.661689990389638 1.4995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2358  
   data-arc span      29998 days (82.13 yr)  
   first obs. used      1937-10-11  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:25:12  

Additional Information
 Earth MOID = 1.54968 au 
 Jupiter MOID = 1.69782 au 
 T_jup = 3.194 
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Orbital Elements at Epoch 2456513.5 (2013-Aug-09.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .176459249531988 3.4936e-08  
q 2.556271472859695 1.1078e-07 au
tp 2456879.617307984496
(2014-Aug-10.11730798)
6.1146e-05 TDB
node 208.2257730379992 5.759e-05 deg
peri 208.9154139906053 5.874e-05 deg
i 3.57311967315503 4.3932e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2358  
   data-arc span      29998 days (82.13 yr)  
   first obs. used      1937-10-11  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:25:12  

Additional Information
 Jupiter MOID = 1.69782 au 
 T_jup = 3.194 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.220504554577212E-15 -3.853373781475829E-15 -4.670738403657571E-13 4.903193717521812E-15 -8.522161406220864E-14 -3.832299595664933E-16
q -3.853373781475829E-15 1.227234409971185E-14 1.388368341450304E-12 -1.729000898198407E-14 2.510344950609042E-13 1.568072729919839E-15
tp -4.670738403657571E-13 1.388368341450304E-12 3.738889287825122E-9 -2.527784204987054E-12 7.203179146184467E-10 7.501699666031739E-13
node 4.903193717521812E-15 -1.729000898198407E-14 -2.527784204987054E-12 3.316644869929187E-9 -3.310729565551074E-9 -4.225701487760278E-11
peri -8.522161406220864E-14 2.510344950609042E-13 7.203179146184467E-10 -3.310729565551074E-9 3.45035580718746E-9 4.229832563825862E-11
i -3.832299595664933E-16 1.568072729919839E-15 7.501699666031739E-13 -4.225701487760278E-11 4.229832563825862E-11 1.93006019629443E-11

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 12.1   n/a MPO452183  
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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