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120428 (2128 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2120428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1203389657391167 3.9482e-08  
a 3.144239046903243 2.7273e-08 au
q 2.765864571962361 1.3585e-07 au
i 7.797040475203325 5.2475e-06 deg
node 215.9129677988629 2.9385e-05 deg
peri 90.82724719777954 3.7641e-05 deg
M 315.1720096849735 2.5244e-05 deg
tp 2459454.082062943311
(2021-Aug-27.58206294)
0.00014441 TDB
period 2036.44067061805
5.58
2.6496e-05
7.254e-08
d
yr
n .1767790268550971 2.3e-09 deg/d
Q 3.522613521844126 3.0554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      21765 days (59.59 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:06:24  

Additional Information
 Earth MOID = 1.76375 au 
 Jupiter MOID = 1.75493 au 
 T_jup = 3.184 
[ 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 14.85   n/a E2021B55  
diameter diameter 6.584 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120428 (2128 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ 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
1906-Jan-04 03:00 00:05 Jupiter 1.74110821581419 1.74110760277357 1.74110882886322 3.2301544997367 3.07586226749793 2417214.624768415 4.53756108331943 292.353504790353 17.3019000961614 -89.3611936864142 2146402.50896222 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
1916-Jul-14 01:25 00:04 Jupiter 1.93281696613967 1.93281517220691 1.93281876008384 4.10639984146811 3.99825654283515 2421058.558782663 4.05376527989867 262.786654093973 20.6256672134992 -72.4534271816743 3013430.98502739 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
1990-Aug-23 06:45 00:01 Jupiter 1.86011006051936 1.86010949134159 1.86011062969714 2.30627019731281 2.09956167304518 2448126.781000079 1.19144504995319 87.0840329644542 29.6028591960791 -87.3498964319241 3137258.87666276 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
2001-Feb-11 18:20 < 00:01 Jupiter 1.74628419480378 1.74628373365458 1.74628465595298 3.10128869464543 2.9407322287473 2451952.263740598 0.638204890937121 73.9427958196092 17.281743750662 -88.3385113117656 2337246.64855736 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
2011-Aug-24 02:15 < 00:01 Jupiter 1.90045463862121 1.90045415363117 1.90045512361125 4.0629117555362 3.95169110441711 2455797.593543349 0.250171931317865 37.1821959033843 20.4702598020865 -78.7518751725813 3060597.08270602 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
2085-Oct-09 03:47 00:03 Jupiter 1.89427568702959 1.89427468264387 1.89427669141639 2.26372324978658 2.05673186723581 2482872.657796666 3.02853356326858 136.344658698345 30.4913427570371 -79.7909785958199 2726894.07783729 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
2096-Mar-25 01:44 00:03 Jupiter 1.76624136780838 1.76624084933291 1.76624188628555 2.9604095156998 2.79372514697417 2486692.572234800 3.41123895203543 161.261620320146 21.0972744499638 80.2686194367362 2066231.52330097 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
2106-Oct-01 21:06 00:04 Jupiter 1.88293625137886 1.88293493031424 1.88293757245537 4.02056218391905 3.9070753324609 2490534.379093366 3.79694931303561 263.52705118835 20.1629566486329 -77.9320618377369 2939827.04622629 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
2180-Nov-23 18:25 00:07 Jupiter 1.91530847574332 1.91530656692828 1.91531038457065 2.26060874876914 2.05569345461919 2517616.267666589 7.16832533742923 296.774791850998 26.2168592754628 -81.8921389336887 2638294.36482925 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06
2191-May-07 18:12 00:07 Jupiter 1.78289386525213 1.78289302448442 1.78289470602835 2.78861704627636 2.61270340692223 2521433.258351305 7.46972666763541 241.075576608609 29.1225214023508 70.1665812784034 1591122.85255406 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 17:06:25 2021-Apr-13 17:06

Alternate Designations
 2128 T-3 = 2000 WC177 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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