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JPL Small-Body Database Browser
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392137 (2009 HW)
Classification: Main-belt Asteroid          SPK-ID: 2392137
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1980494357792894 6.513e-08  
a 3.027576417023485 4.3442e-08 au
q 2.427966615853301 2.0966e-07 au
i 20.33370649596363 6.9583e-06 deg
node 206.317240893917 1.9569e-05 deg
peri 281.5021651968627 2.7999e-05 deg
M 22.89787910309916 1.6475e-05 deg
tp 2458478.113404289196
(2018-Dec-25.61340429)
8.8618e-05 TDB
period 1924.159624457365
5.27
4.1414e-05
1.134e-07
d
yr
n .187094664821025 4.0269e-09 deg/d
Q 3.627186218193669 5.2045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      4177 days (11.44 yr)  
   first obs. used      2007-11-15  
   last obs. used      2019-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:09:21  

Additional Information
 Earth MOID = 1.53427 au 
 Jupiter MOID = 1.79845 au 
 T_jup = 3.121 
[ 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 15.9   n/a MPO427953  

392137 (2009 HW)          Discovered 2009-Apr-16 by CSS at Catalina
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
1927-Nov-13 14:58 00:05 Jupiter 1.79940234993448 1.79940158284357 1.7994031170301 5.62602830780743 5.54172769129036 2425198.123269459 5.3891525563907 939.695124420442 36.856516519651 -89.3197664147402 2241916.52957586 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 12:09:24 2019-Jul-14 12:09
1975-Apr-08 04:49 00:02 Jupiter 1.79223914241732 1.79223834346869 1.79223994136828 5.59435620574236 5.50922951654398 2442510.700941025 2.42350886230262 420.085140751912 37.6496448943744 -88.3687595411276 2210687.27000332 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 12:09:24 2019-Jul-14 12:09
2022-Sep-03 09:18 < 00:01 Jupiter 1.78369912028912 1.78369833347396 1.78369990710448 5.56664382339968 5.48067390634468 2459825.887330299 0.541664849034489 144.087546040901 36.973773725381 86.4434832176678 2152083.94991395 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 12:09:24 2019-Jul-14 12:09
2070-Jan-31 21:56 00:03 Jupiter 1.77596916448559 1.77596837024372 1.77596995872978 5.54580239958771 5.45912570924829 2477143.413899948 3.27051721353634 610.585564841298 37.9614108608301 -89.0202996699136 2142005.38217551 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 12:09:24 2019-Jul-14 12:09
2117-Jul-03 23:16 00:06 Jupiter 1.77531610392518 1.77531506439973 1.77531714357505 5.53140823101291 5.44447016570095 2494462.469675912 6.36918740881644 1156.69058272827 38.4841031141365 -88.000320297569 2131047.65311159 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 12:09:24 2019-Jul-14 12:09
2164-Dec-03 20:54 00:10 Jupiter 1.77152505874865 1.77152346884967 1.77152664918879 5.52358194290028 5.43633091548588 2511782.371080230 9.99788918756477 1802.64498604329 38.8151495827124 -87.4904500532697 2123321.66847296 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 12:09:24 2019-Jul-14 12:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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