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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06952364467982558 5.2132e-08  
a 3.177709641208327 3.1228e-08 au
q 2.956783685217303 1.6566e-07 au
i 16.87005272628893 6.5521e-06 deg
node 56.00123190540281 1.9236e-05 deg
peri 97.44868328406992 5.143e-05 deg
M 22.52313273887179 4.6002e-05 deg
tp 2458871.051792844371
(2020-Jan-22.55179284)
0.00026446 TDB
period 2069.044085310518
5.66
3.0499e-05
8.35e-08
d
yr
n .1739933926762957 2.5648e-09 deg/d
Q 3.39863559719935 3.3399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      8117 days (22.22 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:48:52  

Additional Information
 Earth MOID = 2.02349 au 
 Jupiter MOID = 1.73157 au 
 T_jup = 3.130 
[ 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 00:05 Jupiter 1.74194766253114 1.74194702305265 1.74194830201102 4.7324838703897 4.62859622885001 2416841.877602212 4.64114470554231 422.660556620559 31.5193015001189 -89.7570765004282 1811582.57904934 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48
1915-Oct-25 07:03 00:05 Jupiter 1.8718133730481 1.87181142516242 1.87181532118074 3.41415298347798 3.27893455004634 2420795.793868568 4.99037319148696 1289.12258890198 50.5227328723428 -84.6276777673536 1979826.06315042 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48
2024-Mar-07 11:45 < 00:01 Jupiter 1.78781427686659 1.78781365854269 1.78781489519262 5.08475619987226 4.99071084211455 2460376.989919218 0.493091874129838 167.187022283413 22.0037754770902 -83.188677348144 2685949.17440731 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48
2035-Feb-02 19:46 00:01 Jupiter 1.74608524054884 1.74608451517367 1.74608596592519 4.39336922324193 4.28152975763761 2464361.323486152 1.035835972908 280.391603113861 33.146306379298 -87.3190515879155 2234699.51092845 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48
2045-Oct-30 12:15 00:02 Jupiter 1.96218068079552 1.96217954878266 1.96218181282355 2.79270315770944 2.63359882896332 2468284.010272815 2.05590076312753 549.440031845409 45.4374441441336 -83.8698440030172 1943416.56205436 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48
2143-May-24 19:06 00:06 Jupiter 1.95371709991925 1.9537131298821 1.95372107006447 5.16151029225166 5.07681990059627 2503918.295849610 5.64850476070069 763.325293783366 23.4101521976488 -75.1355395371949 2709787.34336758 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48
2154-Apr-21 10:07 00:06 Jupiter 1.71662499420983 1.71662378478425 1.71662620373572 4.87961329756334 4.77742395327574 2507902.921601290 5.85832631133667 740.995186259796 24.3310426176168 -86.1523249724837 2096363.20883039 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48
2165-Mar-09 09:41 00:07 Jupiter 1.79956700852373 1.79956399875053 1.79957001843441 4.00249227799803 3.88311496883852 2511877.903633708 7.19642178457945 914.365722771826 74.4338146843914 -80.0310706113848 2179517.67424276 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 15:48:53 2020-Nov-12 15:48

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