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21258 Huckins (1996 EH1)
Classification: Main-belt Asteroid          SPK-ID: 2021258
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1643288585852121 3.6363e-08  
a 3.159114599292082 1.7273e-08 au
q 2.639980903050534 1.1194e-07 au
i 14.71587876681156 4.7842e-06 deg
node 197.4341598004553 1.3378e-05 deg
peri 41.30004867810265 1.9412e-05 deg
M 149.2638908657959 1.5386e-05 deg
tp 2458546.147965464849
(2019-Mar-03.64796546)
8.4863e-05 TDB
period 2050.909504348207
5.62
1.6821e-05
4.605e-08
d
yr
n .1755318795084576 1.4397e-09 deg/d
Q 3.67824829553363 2.0112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1798  
   data-arc span      15428 days (42.24 yr)  
   first obs. used      1979-04-25  
   last obs. used      2021-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49677  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:59:06  

Additional Information
 Earth MOID = 1.64959 au 
 Jupiter MOID = 1.371 au 
 T_jup = 3.134 
[ 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 13.32   n/a E2021B10  

21258 Huckins           Discovered 1996 Mar. 15 by the JPL Near-Earth Asteroid Tracking program at Haleakala.
Earle Knowlen Huckins, III (b. 1943), Deputy Associate Administrator in the Office of Space Science at NASA Headquarters, has been responsible for the management, direction and oversight of NASA's space science flight program, mission studies, technology development and overall contract management of JPL.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011002/MPCPages.arcLast Updated: 2009-05-11

[ 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
1965-Jul-06 16:10 00:02 Jupiter 1.74839677881402 1.74839500972288 1.74839854790565 3.01188400384772 2.84649466511262 2438948.173638388 1.93476426729142 131.340765184389 95.8846311748796 -67.8875886813262 3318960.31485662 T 34 CATAB v2.0g-lin.ifort 2021-Aug-25 14:59:17 2021-Aug-25 14:59
1976-May-04 01:35 00:01 Jupiter 1.39387644030672 1.39387589783752 1.39387698277876 3.77417697839713 3.60957945030979 2442902.565945368 1.03245147098808 179.391808222171 22.0724272808672 85.2725748168534 2944634.98220272 T 34 CATAB v2.0g-lin.ifort 2021-Aug-25 14:59:17 2021-Aug-25 14:59
1987-Apr-01 02:09 < 00:01 Jupiter 1.59694901652685 1.59694826999635 1.59694976305826 3.93235247207595 3.79507510095506 2446886.589838734 0.755832556579879 98.8470448361003 26.9059546418373 -74.3837352468753 2932337.52612686 T 34 CATAB v2.0g-lin.ifort 2021-Aug-25 14:59:17 2021-Aug-25 14:59
2084-Feb-12 12:30 00:02 Jupiter 1.72413887677056 1.72413732187527 1.72414043166703 2.89578310519296 2.72084806969499 2482268.020782671 2.08629521872065 135.280210202593 88.863663674406 66.9924603826604 1849510.06497041 T 34 CATAB v2.0g-lin.ifort 2021-Aug-25 14:59:17 2021-Aug-25 14:59
2094-Dec-11 08:24 00:02 Jupiter 1.40675216265477 1.40675171373833 1.40675261157361 3.75009564624952 3.58594382813516 2486222.849704259 1.93205768924483 323.563641583122 20.5754065838669 88.4156610690056 2688663.89997296 T 34 CATAB v2.0g-lin.ifort 2021-Aug-25 14:59:17 2021-Aug-25 14:59
2105-Nov-04 02:28 00:03 Jupiter 1.63411295416584 1.63411069889492 1.6341152094532 4.01513353118374 3.88389259329813 2490202.602615181 2.62924640690953 293.373966988528 26.4155376931202 -68.3492335448687 3006625.34850784 T 34 CATAB v2.0g-lin.ifort 2021-Aug-25 14:59:17 2021-Aug-25 14:59

Alternate Designations
 1996 EH1 = 1979 HV3 = 1990 DS8 = 1998 SV143 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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