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JPL Small-Body Database Browser
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305965 (2009 HJ57)
Classification: Main-belt Asteroid          SPK-ID: 2305965
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262781864261926 1.229e-07  
a 3.017112659979176 6.0792e-08 au
q 2.636117145033499 4.0385e-07 au
i 11.33115331311899 8.5441e-06 deg
node 189.1593527694925 2.8768e-05 deg
peri 24.61396881568556 4.075e-05 deg
M 322.3023061327433 3.8031e-05 deg
tp 2458800.946279734575
(2019-Nov-13.44627973)
0.00020681 TDB
period 1914.192973144284
5.24
5.7854e-05
1.584e-07
d
yr
n .1880688128369097 5.6841e-09 deg/d
Q 3.398108174924852 6.8469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      159  
   data-arc span      5451 days (14.92 yr)  
   first obs. used      2004-05-19  
   last obs. used      2019-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:11:49  

Additional Information
 Earth MOID = 1.63584 au 
 Jupiter MOID = 1.5729 au 
 T_jup = 3.206 
[ 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 16.1   n/a MPO433971  
diameter diameter 3.825 km 0.766 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305965 (2009 HJ57)          Discovered 2009-Apr-22 by La Sagra at La Sagra
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
1927-Oct-19 15:42 00:08 Jupiter 1.63188612201679 1.63188174864279 1.6318904954984 3.2208706540582 3.05547337496976 2425173.153895971 7.90164960132274 734.378375531802 50.4495662179445 -73.7088686183518 1339339.70462755 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
1965-Jun-16 15:43 00:05 Jupiter 1.91312503651903 1.91312128270318 1.91312879033532 2.7471203090763 2.58092700477122 2438928.154532424 5.32632456965958 199.345953994144 145.468215628915 -21.3898908556087 1327201.83384883 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
1974-Jul-14 22:13 00:04 Jupiter 1.86626200565262 1.86625873830324 1.86626527300434 3.24110291307489 3.09790690481266 2442243.425761075 3.98125370391528 206.459883744614 75.8402762702524 -46.5210333478762 1290020.10328717 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
2012-Feb-26 15:18 < 00:01 Jupiter 1.65871048771579 1.65870954861258 1.658711426819 2.95246243483215 2.77411824031429 2455984.137343044 0.469944858269448 160.383351212662 37.8076461335594 -83.9032537712053 1266647.06558392 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
2058-Dec-13 00:14 00:04 Jupiter 1.55722519457685 1.55722404811481 1.55722634105978 3.16830545491166 2.991704890375 2473075.509424499 4.20659119519638 486.228309035896 43.4392054459483 86.0674024616762 1356626.5991595 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
2105-Oct-04 14:10 00:09 Jupiter 1.64325657817894 1.64325266360416 1.64326049293418 3.28824604728173 3.12756372777308 2490172.090031880 9.26458705589513 928.148268115677 43.2814736714696 -78.1921354836121 1431838.92332786 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
2143-Jun-07 04:12 00:15 Jupiter 1.90161061179217 1.90160103219844 1.90162019139768 2.53388138907937 2.35153299117383 2503931.675281767 14.8439060807551 544.355662166685 138.53278318665 -27.6983316548277 857689.622629011 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
2152-Jul-01 03:12 00:15 Jupiter 1.87712968600064 1.87711926194968 1.87714011015542 3.41104680992179 3.27609137628595 2507243.633182724 14.852101671081 884.047550883647 57.3514788894013 -55.0916569966847 1778642.170136 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11
2190-Feb-12 15:51 00:18 Jupiter 1.65686058667644 1.65685160224832 1.65686957141696 2.82857259874852 2.64166239977946 2520984.160632387 17.752875610546 1276.28552526691 87.6465572941774 66.089935458365 1211649.85295293 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:11:51 2019-Jul-14 12:11

Alternate Designations
 2009 HJ57 = 2004 KF11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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