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136916 (1998 HW115)
Classification: Main-belt Asteroid          SPK-ID: 2136916
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072107972513533 5.2263e-08  
a 3.057229298054753 2.3607e-08 au
q 2.729461307630108 1.5976e-07 au
i 10.14300853547556 5.7148e-06 deg
node 153.1904226754581 3.1629e-05 deg
peri 13.09450646565708 4.19e-05 deg
M 90.70452949343031 2.5856e-05 deg
tp 2458508.554581559658
(2019-Jan-25.05458156)
0.00013997 TDB
period 1952.497318795423
5.35
2.2615e-05
6.192e-08
d
yr
n .1843792544729839 2.1356e-09 deg/d
Q 3.384997288479398 2.6138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7680 days (21.03 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5871  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:02:49  

Additional Information
 Earth MOID = 1.73818 au 
 Jupiter MOID = 1.59322 au 
 T_jup = 3.202 
[ 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 14.9   n/a MPO436675  

136916 (1998 HW115)          Discovered 1998-Apr-23 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
1915-Jan-05 23:16 00:04 Jupiter 1.63681617626776 1.63681484242206 1.63681751012825 2.92040638687401 2.73748240987057 2420503.469324917 3.66496420511151 294.929385979452 30.2442021545721 -79.1252579652079 2062037.71567397 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
1963-May-24 17:57 00:02 Jupiter 1.60424490631637 1.60424420762243 1.6042456050134 2.77354020317964 2.57614997426325 2438174.247870083 1.8566122760129 171.969047098487 26.2096321200587 80.7084015504358 1810105.42542869 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
2011-Nov-06 15:05 < 00:01 Jupiter 1.82161026588838 1.82160959974704 1.82161093202962 2.61700476153682 2.43284663535466 2455872.128130546 0.361689780192617 51.8190308455466 23.3496327819252 73.7953220107671 1989364.0912789 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
2021-Apr-07 09:03 < 00:01 Jupiter 1.77316834353541 1.77316770509577 1.77316898197494 3.0283868363235 2.86631285644952 2459311.876889989 0.465427563416254 80.6181416473272 28.2281975907169 -88.6905401108313 2350272.32366683 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
2069-Aug-31 07:24 00:02 Jupiter 1.58709304392088 1.58709247515112 1.58709361269172 2.86542873645671 2.67269400377045 2476989.808550648 2.06546775982992 200.892620126784 25.6288079147323 -88.3521886095603 1905379.57313054 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
2118-Jan-27 01:51 00:04 Jupiter 1.67456721136724 1.67456542716992 1.67456899558056 2.55760836064082 2.35153757606386 2494669.577169347 4.18801627548101 297.861260189398 33.1933565534672 71.1133547600492 1704997.17874445 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
2127-Jul-08 01:33 00:04 Jupiter 1.96249433986482 1.96249118434367 1.96249749538619 3.2918937761898 3.15806182407348 2498118.564587907 4.4113910611236 164.582555967627 65.4391898822265 -30.9709532184385 1322374.94774179 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
2166-Jul-27 00:21 00:06 Jupiter 1.94426169947421 1.94425828150199 1.94426511744897 2.72480940477509 2.55993774245771 2512382.514250352 6.20829386739301 214.195006282237 14.4344072138189 58.4139389586987 1501837.98033273 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02
2175-Dec-08 10:02 00:06 Jupiter 1.67270734452969 1.672704634349 1.67271005475108 3.01223850002389 2.83915910140221 2515803.917960021 6.08785775204688 458.218153754621 32.1946326466598 -75.0288053387573 2195577.83567812 T 15 CATAB v2.0e-lin.ifort 2019-Jul-13 08:02:52 2019-Jul-13 08:02

Alternate Designations
 1998 HW115 = 2003 EK27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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