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136898 (1998 HM43)
Classification: Main-belt Asteroid          SPK-ID: 2136898
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122841901196287 5.1636e-08  
a 3.01907004806697 2.385e-08 au
q 2.648201743517657 1.4864e-07 au
i 10.52104481664435 4.8564e-06 deg
node 180.6542927110037 2.4661e-05 deg
peri 337.59011109 3.0856e-05 deg
M 117.6954801113332 2.0161e-05 deg
tp 2458374.080172896104
(2018-Sep-12.58017290)
0.0001049 TDB
period 1916.056058772028
5.25
2.2704e-05
6.216e-08
d
yr
n .187885943290573 2.2263e-09 deg/d
Q 3.389938352616282 2.6779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      8117 days (22.22 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56194  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 02:31:32  

Additional Information
 Earth MOID = 1.65981 au 
 Jupiter MOID = 1.60385 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457076.5 (2015-Feb-23.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1224189215011868 5.1514e-08  
q 2.645835813281932 1.4815e-07 au
tp 2456455.755022829994
(2013-Jun-12.25502283)
0.00010082 TDB
node 180.8323661662365 2.4664e-05 deg
peri 336.17955254485 3.0982e-05 deg
i 10.52353845001327 4.858e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      8117 days (22.22 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56194  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 02:31:32  

Additional Information
 Jupiter MOID = 1.60385 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.65372413663329E-15 -7.568422947726778E-15 6.740305093675744E-13 1.432815073630098E-14 3.982028355707877E-14 -4.700262409558673E-16
q -7.568422947726778E-15 2.194702367156239E-14 -1.762038245489957E-12 -4.404809014196355E-14 -5.773095894986655E-14 2.141414158700201E-15
tp 6.740305093675744E-13 -1.762038245489957E-12 1.01645565952287E-8 3.669801441231173E-11 1.903449914259712E-9 -6.721229066870912E-12
node 1.432815073630098E-14 -4.404809014196355E-14 3.669801441231173E-11 6.083041345934994E-10 -5.916054319277965E-10 2.593646317501816E-13
peri 3.982028355707877E-14 -5.773095894986655E-14 1.903449914259712E-9 -5.916054319277965E-10 9.59890049210224E-10 -1.403061340843698E-12
i -4.700262409558673E-16 2.141414158700201E-15 -6.721229066870912E-12 2.593646317501816E-13 -1.403061340843698E-12 2.359977224599301E-11

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 15.0   n/a MPO432830  

136898 (1998 HM43)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ 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
1927-Jul-31 01:49 00:03 Jupiter 1.60846272479105 1.6084622242281 1.60846322535801 3.01324872006874 2.8331008334657 2425092.575668017 2.94362804710961 316.298540423822 21.1280205953795 -89.8966174200574 2285697.05878971 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
1974-Mar-05 23:59 00:01 Jupiter 1.72664390826993 1.72664314555881 1.72664467098173 2.60113926078047 2.40516223176596 2442112.498960069 1.47576093405645 116.59448984934 38.2992092887239 -76.2037156207752 2000990.49324988 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
2011-Sep-04 03:29 < 00:01 Jupiter 1.78357709231698 1.78357658524379 1.78357759939028 3.34347640663358 3.19828587123363 2455808.645124582 0.288272701707999 54.8619983605467 21.9913834032662 83.4393335158242 2736397.87457525 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
2058-Apr-10 23:30 00:02 Jupiter 1.60648935382302 1.60648891491202 1.60648979273401 3.09658760355265 2.92136158948839 2472829.478889120 1.52758966243863 162.913373233884 20.0065147781201 -88.9117339131442 2396834.84072821 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
2104-Nov-21 21:24 00:03 Jupiter 1.68286949410527 1.68286778749941 1.68287120071993 2.7950367181844 2.60875247828797 2489855.391431781 3.37426995432243 233.183202496642 37.5305284156169 -67.9263109763334 2222587.63938594 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
2142-May-23 00:31 00:05 Jupiter 1.8449618422662 1.84495885595452 1.84496482859193 3.30612037080884 3.16421101182848 2503551.521796222 4.82072458671989 303.916585317237 26.9731283210837 62.3632184109316 2831342.4525399 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
2151-Jun-03 19:18 00:05 Jupiter 1.94834103997112 1.94833757469367 1.94834450524767 2.60158020993523 2.42873194017447 2506850.304349062 5.36589441780414 158.277980673547 65.796676410396 7.74984928886145 1045467.12237913 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
2188-Dec-21 01:03 00:06 Jupiter 1.61405304427206 1.61405167482176 1.61405441380283 3.12350533067165 2.95071615867553 2520565.543581427 5.97854693225465 620.763228794091 19.7858269303178 84.4340882114197 2419320.9725605 T 22 CATAB v2.0f-lin.ifort 2020-Jun-24 02:31:45 2020-Jun-24 02:31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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