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392149 (2009 HQ40)
Classification: Main-belt Asteroid          SPK-ID: 2392149
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .13427666310327 5.3232e-08  
a 3.190810084770972 6.0084e-08 au
q 2.762358753991664 1.7891e-07 au
i 12.8049662741275 8.1166e-06 deg
node 160.0474555853282 2.6848e-05 deg
peri 127.2650239235848 4.1705e-05 deg
M 296.9666960930877 3.2659e-05 deg
tp 2459565.016701313364
(2021-Dec-16.51670131)
0.00019352 TDB
period 2081.852042320452
5.70
5.8802e-05
1.61e-07
d
yr
n .1729229516227967 4.8843e-09 deg/d
Q 3.61926141555028 6.8151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      5304 days (14.52 yr)  
   first obs. used      2005-09-13  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63692  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:24  

Additional Information
 Earth MOID = 1.76711 au 
 Jupiter MOID = 1.77617 au 
 T_jup = 3.144 
[ 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 16.28   n/a E2021B25  

392149 (2009 HQ40)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ 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
1979-Oct-02 01:40 00:04 Jupiter 1.96244331744985 1.9624414184713 1.96244521644668 3.9143568634897 3.80249353224 2444148.569685562 3.73028702076515 348.390393716214 33.7866394973457 -77.6228815029963 1596292.75188089 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
1990-Sep-19 05:41 00:03 Jupiter 1.81604312812832 1.81604204314801 1.81604421310996 2.82540566201444 2.65520152306721 2448153.736472968 2.87213041367672 224.129818707248 33.2319111160813 89.9517505784692 998463.260782254 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2001-Jul-30 13:01 00:02 Jupiter 1.76978011323894 1.76977910069162 1.76978112578627 1.5921832851496 1.25612145568988 2452121.042425069 1.95761136056532 210.164452838752 114.675393283723 -53.9212618239709 1457566.50237284 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2012-May-14 04:06 < 00:01 Jupiter 1.77495931329409 1.77495837596047 1.77496025062761 2.47257831564414 2.27139386340985 2456061.670525698 0.727928638995625 99.8295296983023 37.70035677406 84.0910821381755 1074325.68406838 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2023-Apr-02 11:16 < 00:01 Jupiter 1.85324006291936 1.8532392110234 1.85324091481532 4.15201768350894 4.04043955119035 2460036.969707370 0.711137057161975 89.8945545424685 35.8406709562183 -83.2210868189913 1570033.65399914 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2121-Dec-04 10:15 00:07 Jupiter 1.88298906591433 1.88298655889198 1.88299157301224 3.67078752102546 3.54612797750276 2496076.927390704 7.30980515393437 652.601858083574 32.747480063541 -81.7985632585593 1461973.66483342 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2132-Nov-25 17:38 00:09 Jupiter 1.77976348352186 1.77976237026522 1.77976459679347 2.6852425214597 2.50173744272212 2500086.235027051 9.0554930482975 515.75411478291 38.1881004453368 81.0947935468504 837618.603563186 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2143-Oct-05 00:04 00:12 Jupiter 1.78310704876031 1.7831058656331 1.78310823191843 1.63459213214996 1.31218866566342 2504051.502802240 11.9452003187804 920.313610899845 98.5167548153043 -70.6915736238365 1653988.52325584 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2154-Jul-19 00:05 00:13 Jupiter 1.82991347714308 1.82991196156172 1.82991499277156 2.81536588004343 2.6458521502916 2507991.503260311 12.5357394234809 668.070641719327 32.3549192718013 78.41379027999 823619.167826022 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27
2165-Jun-06 09:21 00:12 Jupiter 1.9341637789473 1.93416020053912 1.93416735755459 4.56179653314886 4.46476579857533 2511966.889894874 12.3991523791924 1030.78217892273 35.7135173441629 -82.220967774414 1729935.08649364 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 16:27:24 2020-Nov-12 16:27

Alternate Designations
 2009 HQ40 = 2010 GT50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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