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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819553152595865 2.8465e-08  
a 3.100818333747074 1.1059e-08 au
q 2.53660795626742 8.8514e-08 au
i 3.590313907252451 3.6569e-06 deg
node 208.0080991613497 5.4186e-05 deg
peri 209.1446307123136 5.5295e-05 deg
M 93.85063493803509 1.0109e-05 deg
tp 2458876.566708910133
(2020-Jan-28.06670891)
5.5754e-05 TDB
period 1994.402967182217
5.46
1.0669e-05
2.921e-08
d
yr
n .1805051466146906 9.6561e-10 deg/d
Q 3.665028711226729 1.3071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3229  
   data-arc span      30579 days (83.72 yr)  
   first obs. used      1937-10-11  
   last obs. used      2021-07-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43152  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:56:58  

Additional Information
 Earth MOID = 1.54892 au 
 Jupiter MOID = 1.69755 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457193.5 (2015-Jun-20.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770285673785179 2.8151e-08  
q 2.55620376302917 8.6768e-08 au
tp 2456880.610939699971
(2014-Aug-11.11093970)
5.9061e-05 TDB
node 208.1765380033055 5.4506e-05 deg
peri 209.2103675229095 5.5687e-05 deg
i 3.573124171591086 3.6487e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3229  
   data-arc span      30579 days (83.72 yr)  
   first obs. used      1937-10-11  
   last obs. used      2021-07-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43152  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:56:58  

Additional Information
 Jupiter MOID = 1.69755 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.924894788168962E-16 -2.42859994182093E-15 -3.984861784347118E-13 5.835591823137456E-15 -9.533560276244281E-14 -1.012439913050337E-16
q -2.42859994182093E-15 7.528663955742599E-15 1.117421387734767E-12 -1.937694580326018E-14 2.769508709800798E-13 3.097491929421292E-16
tp -3.984861784347118E-13 1.117421387734767E-12 3.488228494968882E-9 -6.843991044356711E-12 6.868815632830593E-10 -1.364638719439859E-13
node 5.835591823137456E-15 -1.937694580326018E-14 -6.843991044356711E-12 2.970924373759172E-9 -2.966570039333183E-9 -4.878722950704475E-11
peri -9.533560276244281E-14 2.769508709800798E-13 6.868815632830593E-10 -2.966570039333183E-9 3.100999604319618E-9 4.866580969269742E-11
i -1.012439913050337E-16 3.097491929421292E-16 -1.364638719439859E-13 -4.878722950704475E-11 4.866580969269742E-11 1.331275623539289E-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 12.25   n/a MPO636087  
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

[ hide close-approach data ]
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 09:32 00:02 Jupiter 1.80207103432661 1.80207046389823 1.80207160475468 2.14158196760137 1.90953366122624 2424201.897412426 1.59893179173574 42.6295411551076 9.74747772990165 -82.6651955597176 2041247.02608163 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
1935-Feb-12 04:24 00:01 Jupiter 1.78875741357185 1.78875695857029 1.78875786857352 1.96043817001474 1.70184209754095 2427845.683319617 1.36961865566453 73.7147988628612 21.3220906123456 85.6706393698119 2684366.29261468 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
1996-Jan-06 10:30 < 00:01 Jupiter 1.75366492055671 1.75366460342319 1.75366523769023 1.93099229636374 1.6621457707979 2450088.937439696 0.414866153898565 47.0965146633692 18.2315800748381 -86.5776425616008 3455294.36356278 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
2005-Dec-30 01:48 < 00:01 Jupiter 1.84649231121308 1.84649193847932 1.84649268394673 2.11126021990854 1.88148350903556 2453734.574885966 0.254184182569458 37.3288748874685 14.6606124325999 83.5994211393038 2899559.40719429 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
2066-Nov-20 09:24 < 00:01 Jupiter 1.71951408177755 1.71951381502467 1.71951434853043 1.80300533757437 1.50520431322413 2475974.891927134 0.866069047192754 54.4599265117678 27.9286466796315 85.8567830808795 3510954.64166749 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
2076-Nov-16 12:35 00:01 Jupiter 1.91857396236129 1.91857335656395 1.91857456815873 2.32831210359639 2.13027376851457 2479624.024494083 1.02272533013545 57.5939789021954 11.0687879309697 78.7782602227208 2698802.5513009 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
2127-Oct-27 07:07 00:02 Jupiter 1.92128175746349 1.92128098826394 1.92128252666326 2.87456732873787 2.71687519706592 2498229.796520335 1.88172365289062 70.7719686988693 14.3872284994341 80.7385096873417 2563333.02843246 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
2137-Oct-06 08:09 00:02 Jupiter 1.71126758752976 1.71126729124629 1.71126788381312 1.76656641088105 1.45973322879752 2501861.839877998 2.05127703686163 82.6770837137786 33.1392102618703 89.7634261399329 3014401.65936501 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
2147-Oct-05 21:30 00:02 Jupiter 1.99859660686332 1.99859551939622 1.99859769433167 2.60789999879184 2.43998465618763 2505513.395525930 2.17733194247866 110.036943101653 11.5097501635905 74.2742365658776 2782712.50962383 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57
2198-Sep-10 20:19 00:03 Jupiter 1.84622567124427 1.84622459952868 1.84622674295996 2.42832681507763 2.23141190702434 2524116.346258296 3.14560264321381 86.3664574693517 8.40725301798166 89.9360512344506 1998811.13549588 T 48 CATAB v2.0g-lin.ifort 2021-Aug-25 07:57:30 2021-Aug-25 07:57

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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