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305972 (2009 HG76)
Classification: Main-belt Asteroid          SPK-ID: 2305972
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04910186761640092 7.1499e-08  
a 3.054163946849529 3.639e-08 au
q 2.904198793052539 2.2359e-07 au
i 2.913960614823913 6.4265e-06 deg
node 94.24236289520614 0.00013219 deg
peri 146.9419462018814 0.00014662 deg
M 30.96666146260392 6.0499e-05 deg
tp 2459032.801633744636
(2020-Jul-02.30163374)
0.00032851 TDB
period 1949.561528446869
5.34
3.4843e-05
9.539e-08
d
yr
n .1846569060514834 3.3002e-09 deg/d
Q 3.20412910064652 3.8177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      9014 days (24.68 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62429  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:57:11  

Additional Information
 Earth MOID = 1.89032 au 
 Jupiter MOID = 1.78528 au 
 T_jup = 3.232 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457953.5 (2017-Jul-19.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04800405444249485 7.1501e-08  
q 2.907362577477045 2.2373e-07 au
tp 2457078.108900925448
(2015-Feb-24.60890093)
0.00034721 TDB
node 94.24130043652842 0.0001322 deg
peri 145.8124475839503 0.00014722 deg
i 2.913965743771536 6.4278e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      9014 days (24.68 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62429  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:57:11  

Additional Information
 Jupiter MOID = 1.78528 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.112397184631696E-15 -1.580140478789899E-14 -1.619532176772596E-12 -2.922876628176796E-14 -1.61976399695974E-13 -1.297112266146979E-15
q -1.580140478789899E-14 5.00550427232393E-14 3.566494276876783E-13 9.351432999384841E-14 -2.791941366755767E-13 4.21102075061768E-15
tp -1.619532176772596E-12 3.566494276876783E-13 1.205529726090618E-7 -7.314781280757712E-11 2.253178447152962E-8 5.35902203520523E-12
node -2.922876628176796E-14 9.351432999384841E-14 -7.314781280757712E-11 1.747667919911288E-8 -1.746835204200451E-8 -2.931324374390447E-10
peri -1.61976399695974E-13 -2.791941366755767E-13 2.253178447152962E-8 -1.746835204200451E-8 2.167365064878652E-8 2.937837725898007E-10
i -1.297112266146979E-15 4.21102075061768E-15 5.35902203520523E-12 -2.931324374390447E-10 2.937837725898007E-10 4.131656822804458E-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 16.73   n/a E2021B25  

305972 (2009 HG76)          Discovered 2009-Apr-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ 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
1905-Oct-29 05:05 00:06 Jupiter 1.83261137974989 1.83260984435671 1.83261291514327 2.79898869393083 2.62867821034302 2417147.712062282 6.08194726381565 105.305643339537 34.6897584798197 66.1871290945399 1387049.53938694 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
1915-Apr-22 20:38 00:05 Jupiter 1.90713961765814 1.90713806620166 1.90714116912512 3.23438315261801 3.09402158388967 2420610.360037282 5.47573695888493 263.293150578135 23.2736313869067 -78.2742827182432 2306500.09390334 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
1954-Apr-29 11:34 00:03 Jupiter 1.99727237672438 1.99727104009423 1.99727371335453 3.31799404437581 3.1876174818549 2434861.982174332 3.32650159269742 79.382038752424 38.1582236455091 -55.7184224930678 1679148.88995875 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
1963-Oct-27 20:39 00:03 Jupiter 1.78793074321061 1.78793011385888 1.78793137256233 2.72560752777264 2.54586865762847 2438330.360215018 2.92374099501144 161.165029373407 13.889127998466 -89.4044681033588 1931626.1533848 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
2012-May-05 22:36 < 00:01 Jupiter 1.79918974276454 1.79918905558999 1.79919042993889 2.69776194724098 2.5172126576761 2456053.441939122 0.402171235273059 66.335799320729 15.9058871519784 -87.3362401436 1748685.51346183 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
2021-Nov-01 03:47 < 00:01 Jupiter 1.95814606391209 1.95814541896268 1.95814670886145 3.46039516828838 3.33304781312565 2459519.657304581 0.471945540621328 65.8359007710005 24.678368259336 -86.5087880044972 2432223.89057747 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
2060-Nov-07 11:13 00:02 Jupiter 1.9377810005055 1.93777993789516 1.93778206311561 3.10889379002597 2.96496232183636 2473770.967640304 2.40655604212004 58.9944484379066 34.7291313994368 -69.006704787458 1565827.54576615 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
2070-May-05 00:57 00:03 Jupiter 1.81054128461591 1.81054035457908 1.81054221465582 2.83847597891671 2.66857437909349 2477236.539378611 3.01944921875085 179.513077362377 17.6741718668376 -83.4375732298708 1990090.76819936 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
2118-Nov-13 04:40 00:06 Jupiter 1.78297734056043 1.78297659527025 1.78297808585142 2.65623029696165 2.47091843998527 2494959.694478946 5.70702190724198 189.7397445002 15.8736773653439 86.5777039870736 1741554.10344772 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
2167-May-20 18:55 00:08 Jupiter 1.8906227693537 1.89062025428624 1.89062528441977 2.94861420838618 2.79254380078431 2512680.288260819 8.23514617691045 98.8325405022272 49.4547959120794 -22.6096716467451 797787.685878155 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
2176-Nov-12 09:50 00:09 Jupiter 1.85132927975919 1.85132685230327 1.85133170725593 3.01471052018168 2.85892234829878 2516143.909805666 8.84146906378658 478.644171998555 20.1991933114544 -80.4065318046752 2148101.9247234 T 14 CATAB v2.0f-lin.ifort 2021-Apr-14 05:57:12 2021-Apr-14 05:57
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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