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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181695840154162 3.3602e-08  
a 3.100753282072348 1.2177e-08 au
q 2.537359309375438 1.0668e-07 au
i 3.589966713660517 4.204e-06 deg
node 208.0268620726327 5.5572e-05 deg
peri 209.1719612733301 5.6654e-05 deg
M 22.35634635025946 1.0231e-05 deg
tp 2458876.649554421093
(2020-Jan-28.14955442)
5.6594e-05 TDB
period 1994.340207020859
5.46
1.1748e-05
3.216e-08
d
yr
n .1805108269555309 1.0634e-09 deg/d
Q 3.664147254769259 1.439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2666  
   data-arc span      30352 days (83.10 yr)  
   first obs. used      1937-10-11  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:02:04  

Additional Information
 Earth MOID = 1.55009 au 
 Jupiter MOID = 1.69645 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456766.5 (2014-Apr-19.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .176359802484543 3.3368e-08  
q 2.555895083667926 1.0527e-07 au
tp 2456879.895570550608
(2014-Aug-10.39557055)
5.9599e-05 TDB
node 208.222419726558 5.5899e-05 deg
peri 208.9921834851565 5.706e-05 deg
i 3.573477613176812 4.1941e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2666  
   data-arc span      30352 days (83.10 yr)  
   first obs. used      1937-10-11  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:02:04  

Additional Information
 Jupiter MOID = 1.69645 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.113426742528464E-15 -3.496644736486423E-15 -4.057361658618519E-13 6.243696937529126E-15 -8.05747887440466E-14 -3.441010276740841E-16
q -3.496644736486423E-15 1.108127701067393E-14 1.16308509844312E-12 -2.124053759954882E-14 2.318918175390759E-13 1.416982756823114E-15
tp -4.057361658618519E-13 1.16308509844312E-12 3.55202631096905E-9 -3.835575041835599E-12 6.952400847036917E-10 7.200859805959741E-13
node 6.243696937529126E-15 -2.124053759954882E-14 -3.835575041835599E-12 3.124743088705187E-9 -3.119441220207972E-9 -3.20443793511007E-11
peri -8.05747887440466E-14 2.318918175390759E-13 6.952400847036917E-10 -3.119441220207972E-9 3.25588934306619E-9 3.21049296091895E-11
i -3.441010276740841E-16 1.416982756823114E-15 7.200859805959741E-13 -3.20443793511007E-11 3.21049296091895E-11 1.759057118055403E-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 12.2   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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1925-Feb-20 09:35 00:02 Jupiter 1.80207167957661 1.80207109936335 1.80207225978967 2.14158489068514 1.909537026301 2424201.899083929 1.72658350062482 48.2107792156369 10.3801676958226 -84.4831597585583 2020102.90261375 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
1935-Feb-12 04:26 00:01 Jupiter 1.78875698932726 1.7887564584232 1.78875752023142 1.96043726651466 1.7018409892245 2427845.684632631 1.4669244125311 76.1072855212533 25.2470148584465 86.9241078408702 2317958.71627066 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
1996-Jan-06 10:30 < 00:01 Jupiter 1.75366493796656 1.75366460032747 1.75366527560564 1.93099257902241 1.66214610045523 2450088.937511541 0.428000566783023 52.4143729810559 19.9988644281182 -89.9566133547691 3171336.68404182 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
2005-Dec-30 01:48 < 00:01 Jupiter 1.84649233932527 1.84649195038722 1.84649272826322 2.11126039242369 1.88148370498418 2453734.574870608 0.254802975280248 38.6818363653835 17.205272562631 86.0005267950248 2642519.96543429 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
2066-Nov-20 09:23 < 00:01 Jupiter 1.71951387879389 1.71951355710026 1.71951420048762 1.80300468491234 1.50520349099435 2475974.890748997 0.971227709899651 62.1106392431463 30.5289203544547 78.4636176133954 3087312.29295112 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
2076-Nov-16 12:33 00:01 Jupiter 1.91857508359698 1.91857446216152 1.91857570503266 2.32831523541949 2.13027731145363 2479624.022827469 1.15441831365124 65.0842727543751 12.667897839372 79.5433673624784 2636028.83643749 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
2127-Oct-27 07:01 00:02 Jupiter 1.92127952055769 1.92127867898724 1.92128036212836 2.87455181739716 2.71685859559149 2498229.792335799 2.07081880937037 77.8604588049042 15.838673064519 81.2963237879236 2264228.13174213 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
2137-Oct-06 08:03 00:02 Jupiter 1.7112678333887 1.7112675163417 1.7112681504355 1.76656705020826 1.45973404935283 2501861.835114487 2.27044071173945 93.7061319976126 37.231668064929 84.7927020032274 2699581.16223898 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
2147-Oct-05 21:22 00:02 Jupiter 1.9986001897781 1.9985990241852 1.99860135537282 2.60791216820487 2.43999797349401 2505513.390269825 2.42037479804276 123.092426041069 12.4289879967739 74.6736326281404 2732883.10830082 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02
2198-Sep-10 20:07 00:03 Jupiter 1.8462216576926 1.84622046239893 1.84622285298627 2.42830211354994 2.23138457753301 2524116.337995867 3.45656405956047 94.838630009809 9.13238064782151 -89.7309531017696 1714261.06388057 T 41 CATAB v2.0f-lin.ifort 2020-Dec-18 02:02:10 2020-Dec-18 02:02

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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