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118270 (1998 HN129)
Classification: Main-belt Asteroid          SPK-ID: 2118270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1620890559655938 5.6338e-08  
a 2.795092597928202 2.0103e-08 au
q 2.3420386773936 1.5613e-07 au
i 7.682181576298717 7.2962e-06 deg
node 205.6305344057474 3.3399e-05 deg
peri 327.9220370387378 3.8323e-05 deg
M 277.2728668155509 2.0226e-05 deg
tp 2459392.727645434063
(2021-Jun-27.22764543)
9.8332e-05 TDB
period 1706.839665789425
4.67
1.8414e-05
5.041e-08
d
yr
n .2109161201345162 2.2755e-09 deg/d
Q 3.248146518462804 2.3362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      8251 days (22.59 yr)  
   first obs. used      1998-03-22  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55582  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:12:41  

Additional Information
 Earth MOID = 1.35055 au 
 Jupiter MOID = 1.74345 au 
 T_jup = 3.295 
[ 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 15.4   n/a MPO493675  

118270 (1998 HN129)          Discovered 1998-Apr-19 by LINEAR at Socorro
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
1916-Jul-06 22:20 00:04 Jupiter 1.80503380435317 1.8050322116508 1.80503539707494 2.75405552619704 2.57804389306962 2421051.430243955 3.77215399191144 333.540256699613 24.4769845029264 82.5398658182304 1620472.44209647 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
1939-Sep-13 20:56 00:03 Jupiter 1.75351735890277 1.75351682814857 1.75351788965826 2.36238065771045 2.14819887125969 2429520.372330254 2.68869493647082 244.376016449602 35.903804827183 -85.0843776425122 1352566.22088122 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
1962-Nov-20 13:10 00:02 Jupiter 1.80053514055577 1.8005344702524 1.80053581086027 2.08121232418801 1.84135502458841 2437989.048734942 1.82802877078138 139.562830279591 53.8929606058094 -77.2999161438405 1445885.11189147 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
1986-Jan-06 21:08 00:01 Jupiter 1.94388781006834 1.94388706023232 1.94388855990458 2.09653698351987 1.87723059011276 2446437.380339645 1.07038107323778 81.8385831504181 24.1345481405647 -78.0410258189916 2191252.89070687 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
2071-Apr-19 00:11 00:02 Jupiter 1.91978395483029 1.91978303980805 1.91978486985418 3.14778523828514 3.00435309065867 2477585.507525477 1.72312659799444 128.674296864059 26.0850411427204 77.3092807716357 2026608.58090247 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
2094-Jun-17 09:46 00:02 Jupiter 1.78796802985861 1.78796729652226 1.78796876319943 2.73619091263071 2.55719989259821 2486045.906876229 2.45094393768524 213.181501008618 25.5689059061278 86.4520667648036 1601268.73763305 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
2117-Aug-27 11:58 00:03 Jupiter 1.74991717361417 1.74991656360494 1.74991778362779 2.41746447541159 2.20818091181715 2494516.998646715 3.35960276087817 276.784785561022 35.7330139728278 -82.1471637937602 1413307.12677435 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
2140-Nov-03 09:20 00:05 Jupiter 1.80497137138269 1.80496959569127 1.80497314708488 2.17964274526088 1.95251082137492 2502985.888564866 4.59889314369614 266.669630495789 54.5083737023348 -66.7869885145796 1546564.03842078 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12
2163-Dec-21 08:41 00:06 Jupiter 1.96063168163005 1.96062834846177 1.96063501480034 2.23011075870338 2.02715657308458 2511433.862059473 6.02142617596759 206.973726366793 35.2261975513879 -58.9297196852019 1691788.85330554 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:12:42 2020-Nov-12 18:12

Alternate Designations
 1998 HN129 = 2003 JL6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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