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JPL Small-Body Database Browser
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136920 (1998 HN145)
Classification: Main-belt Asteroid          SPK-ID: 2136920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06993409067181214 5.4401e-08  
a 3.179039766626069 4.0251e-08 au
q 2.956716511337545 1.6779e-07 au
i 16.87034904205668 8.2263e-06 deg
node 56.0096893697289 1.9374e-05 deg
peri 97.44765612220175 6.1993e-05 deg
M 312.9517238847159 6.06e-05 deg
tp 2458871.072454947798
(2020-Jan-22.57245495)
0.0003505 TDB
period 2070.343311676917
5.67
3.932e-05
1.077e-07
d
yr
n .1738842046000625 3.3024e-09 deg/d
Q 3.401363021914593 4.3066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      7545 days (20.66 yr)  
   first obs. used      1998-04-21  
   last obs. used      2018-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6418  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:37:00  

Additional Information
 Earth MOID = 2.02393 au 
 Jupiter MOID = 1.73048 au 
 T_jup = 3.129 
[ 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 14.5   n/a MPO432830  
diameter diameter 7.189 km 0.574 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136920 (1998 HN145)          Discovered 1998-Apr-21 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
1904-Dec-27 09:04 00:06 Jupiter 1.74194742460769 1.74194660905801 1.74194824017342 4.73248349914545 4.62859583492457 2416841.877606244 5.56041836900077 563.040972955004 34.6223547822991 -88.6224967337618 1416030.69075301 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37
1915-Oct-25 07:03 00:06 Jupiter 1.87181325622087 1.87181107090259 1.8718154418358 3.41415292934082 3.27893448506312 2420795.793901396 5.96294202710879 1470.63036962779 63.9173071447287 -84.6966754369524 1716976.90608248 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37
2024-Mar-07 11:46 < 00:01 Jupiter 1.78781407630156 1.78781337779138 1.78781477481357 5.0847558184953 4.99071044290105 2460376.989969711 0.641757749489934 194.01388264311 27.6027921818055 -84.3991254763058 2343475.51243733 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37
2035-Feb-02 19:46 00:01 Jupiter 1.74608501741995 1.74608405698315 1.74608597785834 4.39336922160382 4.28152974147829 2464361.323564189 1.34626123293678 342.690150376333 44.1224085798997 -87.1032462503462 2007667.81810426 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37
2045-Oct-30 12:15 00:03 Jupiter 1.9621806151207 1.96217919879413 1.96218203147103 2.79270336044229 2.6335990384578 2468284.010379124 2.58092517755729 679.837246102477 56.9947102607406 -84.0209882630814 1825318.99734795 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37
2143-May-24 19:06 00:07 Jupiter 1.95371704530631 1.95371244122171 1.95372164954649 5.161509743609 5.07681934041414 2503918.295964291 6.93277795091167 915.159931868958 28.9810504801095 -75.6044031946012 2184427.61331788 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37
2154-Apr-21 10:07 00:07 Jupiter 1.71662478516814 1.71662355630754 1.71662601414778 4.87961317685974 4.7774238174131 2507902.921731830 7.20257668117102 857.353248671713 30.1508359558788 -86.8430214952108 1724020.16982684 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37
2165-Mar-09 09:41 00:09 Jupiter 1.79956678910134 1.79956295320085 1.79957062523802 4.00249282764736 3.88311552060604 2511877.903808621 8.86019660221307 1188.00152120139 90.8923035393271 -80.2399932413866 1985656.50035565 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 07:37:02 2019-Jul-13 07:37

Alternate Designations
 1998 HN145 = 2003 DG15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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