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100874 (1998 HG83)
Classification: Outer Main-belt Asteroid          SPK-ID: 2100874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779142352951503 4.6203e-08  
a 3.221780644686824 3.0403e-08 au
q 2.648580004998652 1.5178e-07 au
i 6.820120844803455 5.2917e-06 deg
node 81.39222787495997 4.5622e-05 deg
peri 189.8589018522823 4.9674e-05 deg
M 250.176665115528 2.4713e-05 deg
tp 2459644.868802408090
(2022-Mar-06.36880241)
0.00015036 TDB
period 2112.235702102241
5.78
2.9899e-05
8.186e-08
d
yr
n .1704355246157915 2.4125e-09 deg/d
Q 3.794981284374997 3.5812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7957 days (21.79 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:32  

Additional Information
 Earth MOID = 1.63272 au 
 Jupiter MOID = 1.31688 au 
 T_jup = 3.153 
[ 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 14.7   n/a MPO436470  
diameter diameter 5.964 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100874 (1998 HG83)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1991-Mar-04 08:42 00:02 Jupiter 1.86064894932119 1.86064731381288 1.86065058482939 2.14765246143885 1.92404569939076 2448319.862292530 1.58764655266119 108.762274634886 10.3481339017816 -73.8169563546394 1310529.15730895 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2002-Feb-19 05:00 < 00:01 Jupiter 1.49258068973287 1.49257973470026 1.49258164477439 1.50765887959857 1.06679806472104 2452324.708515394 0.875449822750971 245.745896963349 213.715105755684 64.5857160765767 1375729.48177465 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2013-Apr-14 00:25 < 00:01 Jupiter 1.30232407875521 1.30232359862981 1.30232455888608 1.4527411838063 0.899817130540074 2456396.517209912 0.29582579371809 414.267355581612 193.055361475525 1.09855598213024 1166537.1177373 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2024-Jun-24 15:01 < 00:01 Jupiter 1.33903534233856 1.33903477541787 1.33903590926405 1.4835849509303 0.967419682430741 2460486.125368021 0.635904868002427 337.898262257572 238.553036551259 -20.8440630582853 1173341.12632013 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2035-Jul-02 05:12 00:01 Jupiter 1.60867818831259 1.60867718566179 1.60867919097381 1.90713336507892 1.60751087727083 2464510.716794868 1.33246024108997 290.035621775501 48.6365412297142 -89.4328990076465 1612822.14767672 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2145-Jan-24 16:17 00:04 Jupiter 1.6292656074054 1.62926281452726 1.6292684003367 1.46751510999305 1.05538651985387 2504529.178132862 4.02132174822642 636.727482237002 200.925525850745 75.2044827407084 1319217.26969685 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2156-Feb-24 18:47 00:04 Jupiter 1.37140152600121 1.37139984970052 1.37140320236855 1.37007927026918 0.801156462699929 2508577.282808376 3.76063159479875 673.153021691188 593.404982267023 -81.782767889229 1150255.80009738 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2167-May-07 05:49 00:04 Jupiter 1.31928472072184 1.31928408081347 1.3192853606291 1.47789444250734 0.948740601566599 2512666.742121837 4.18900780463104 377.369832465318 251.648491797273 -22.8391091096987 1127329.26972317 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2178-Jun-13 23:38 00:06 Jupiter 1.49698714420183 1.49698383394739 1.49699045459829 1.77221457244798 1.41743012702841 2516722.484483383 5.83817081250803 875.850744157228 85.5750708624039 88.519336728325 1234515.38017623 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12
2189-May-10 22:32 00:07 Jupiter 1.85667479360934 1.85666980254587 1.85667978471755 2.97387316007203 2.81629428863633 2520706.438784094 7.16088893634165 539.472700147549 28.1127819642214 -72.4272463774548 2042788.87579593 T 19 CATAB v2.0f-lin.ifort 2020-Feb-24 01:12:42 2020-Feb-24 01:12

Alternate Designations
 1998 HG83 = 2003 EB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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