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4153 Roburnham (1985 JT1)
Classification: Main-belt Asteroid          SPK-ID: 2004153
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1670143954821592 1.8367e-08  
a 3.143159962331561 1.3636e-08 au
q 2.618207001319029 5.8588e-08 au
i 1.425178876510116 1.4391e-07 deg
node 66.04408527907896 1.1491e-05 deg
peri 207.2487819186822 1.0743e-05 deg
M 145.3193144609138 6.3245e-06 deg
tp 2458574.883802947933
(2019-Apr-01.38380295)
3.3108e-05 TDB
period 2035.392418660907
5.57
1.3245e-05
3.626e-08
d
yr
n .176870070213215 1.151e-09 deg/d
Q 3.668112923344093 1.5913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3105  
   data-arc span      15306 days (41.91 yr)  
   first obs. used      1979-04-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45072  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:17:08  

Additional Information
 Earth MOID = 1.60188 au 
 Jupiter MOID = 1.44683 au 
 T_jup = 3.188 
[ 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 12.41   n/a E2021B10  
diameter diameter 17.337 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4153 Roburnham (1985 JT1)          Discovered 1985-May-14 by Shoemaker, C. S. at Palomar
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
1955-Jun-13 03:36 00:01 Jupiter 1.80955845727181 1.80955756073379 1.80955935380931 2.10050292934499 1.86438936541902 2435271.649727284 1.41003979068198 29.7629595157437 2.00112498190363 -79.0954117980678 3204677.09022113 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
1965-Dec-10 13:54 00:01 Jupiter 1.49026628458654 1.49026598641398 1.49026658275867 1.20517546785488 0.561879072606744 2439105.079489276 1.10549298622681 419.931614342839 66.4614469286935 -4.6854355184868 3649641.32453245 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
1976-Jun-05 12:44 < 00:01 Jupiter 1.59516816137866 1.59516779963073 1.59516852312686 1.82990161282297 1.51213580257437 2442935.030628094 0.844317454753236 57.1206658511363 6.15179634885649 61.228566800494 11324027.0213499 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
2050-Nov-03 05:37 < 00:01 Jupiter 1.92525891097076 1.92525848500325 1.92525933693827 2.49764322782816 2.31480380418256 2470113.733791166 0.775397374751686 25.5254074439086 3.071912451124 -69.0977400712756 5518054.52186817 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
2061-May-04 07:37 00:01 Jupiter 1.5481117162467 1.54811135519363 1.54811207729915 1.31020619420517 0.788907417115557 2473948.817419750 1.06303137995352 189.784891583558 39.4811841980303 -5.42007888803103 2891111.92078389 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
2071-Nov-05 21:32 00:01 Jupiter 1.52355687350863 1.52355644635884 1.52355730065808 1.48330361203531 1.04321052736722 2477786.397554421 1.39978693156806 140.401598972011 7.16452441148341 21.6843963325474 13671303.0964952 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
2082-Apr-23 18:10 00:02 Jupiter 1.87590439000764 1.87590343131851 1.87590534869784 3.22537547546662 3.0822056810029 2481608.256748062 1.65837989705492 86.7233199584185 3.74805679862727 -67.5158651214779 12235945.8117261 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
2156-Oct-04 21:23 00:03 Jupiter 1.64585575575821 1.64585427412728 1.64585723738475 1.55017403843518 1.17207525099727 2508800.391041132 3.26623399342334 165.594853436827 26.7516120496754 11.1792174961547 1220304.35276696 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
2167-Apr-08 05:51 00:04 Jupiter 1.49309624612533 1.49309580957113 1.49309668267852 1.28404137501581 0.717061345282252 2512637.743615147 3.58252014736473 604.491452801965 22.7649329507187 -8.42237211516254 4768227.14859489 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19
2177-Sep-25 06:51 00:04 Jupiter 1.76253030256189 1.76252818066942 1.76253242445997 2.6202769296524 2.42996037347135 2516460.785653275 3.97580861604161 202.224079558296 2.24632248186836 -78.2527008775161 11485382.3795883 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 14:19:21 2021-Jul-08 14:19

Alternate Designations
 1985 JT1 = 1979 HK2 = 1981 UF17 = 1981 UJ21 = 1984 DM2 = 1985 KE1 = 1986 RJ3 = 1986 WE8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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