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65985 (1998 HX146)
Classification: Main-belt Asteroid          SPK-ID: 2065985
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 .1441485284536901 4.0767e-08  
a 2.70166136678381 1.3564e-08 au
q 2.312220856381738 1.111e-07 au
i 11.82167375409911 4.6154e-06 deg
node 104.9193389699759 2.1952e-05 deg
peri 105.292564443316 2.7649e-05 deg
M 354.7195286900427 1.5635e-05 deg
tp 2459024.291125185910
(2020-Jun-23.79112519)
7.0463e-05 TDB
period 1621.977388794271
4.44
1.2215e-05
3.344e-08
d
yr
n .2219513061569946 1.6715e-09 deg/d
Q 3.091101877185881 1.5519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1088  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:11:17  

Additional Information
 Earth MOID = 1.33926 au 
 Jupiter MOID = 1.99875 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457336.5 (2015-Nov-10.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1448112509579963 4.0698e-08  
q 2.310899538032114 1.1098e-07 au
tp 2457400.010010609412
(2016-Jan-12.51001061)
6.9818e-05 TDB
node 104.9440216785517 2.1954e-05 deg
peri 104.8938399887872 2.7611e-05 deg
i 11.82101406225295 4.6151e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1088  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:11:17  

Additional Information
 Jupiter MOID = 1.99875 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.656332808649093E-15 -4.492114269748151E-15 2.786143637782173E-13 -3.741168241211522E-15 1.010952481972978E-13 -4.575397722662533E-15
q -4.492114269748151E-15 1.231706229630794E-14 -7.915982152911074E-13 1.046131550293847E-14 -2.851996032539984E-13 1.282326093397799E-14
tp 2.786143637782173E-13 -7.915982152911074E-13 4.874490587953053E-9 -8.551577443956639E-12 1.188475559671109E-9 2.429333216684732E-12
node -3.741168241211522E-15 1.046131550293847E-14 -8.551577443956639E-12 4.819736154675152E-10 -4.735548963858295E-10 -6.426901404570781E-12
peri 1.010952481972978E-13 -2.851996032539984E-13 1.188475559671109E-9 -4.735548963858295E-10 7.623554793690287E-10 6.707183909535361E-12
i -4.575397722662533E-15 1.282326093397799E-14 2.429333216684732E-12 -6.426901404570781E-12 6.707183909535361E-12 2.129876616143498E-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 14.7   n/a MPO385236  

65985 (1998 HX146)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ 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
2059-Jun-26 15:58 < 00:01 David 0.0276154945214359 0.0276027529491843 0.0276282361150389 4.91186785938865 4.91186774801472 2473271.165082506 0.789323707616583 636.223723167891 75.8707907614925 -3.53356044229571 7293.14419008497 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 23:11:31 2020-Jun-23 23:11

Alternate Designations
 1998 HX146 = 2002 BY7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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