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192490 (1998 HU23)
Classification: Main-belt Asteroid          SPK-ID: 2192490
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09634954382466769 6.3608e-08  
a 2.592887155007346 1.325e-08 au
q 2.343063660433548 1.6058e-07 au
i 3.355112407082721 4.0733e-06 deg
node 317.7103269346201 8.405e-05 deg
peri 228.1587201148544 8.6421e-05 deg
M 206.6278611765101 1.9578e-05 deg
tp 2460046.207416736386
(2023-Apr-11.70741674)
8.4015e-05 TDB
period 1525.014072433843
4.18
1.1689e-05
3.2e-08
d
yr
n .2360633954186787 1.8094e-09 deg/d
Q 2.842710649581145 1.4526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      8206 days (22.47 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56926  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:19  

Additional Information
 Earth MOID = 1.34709 au 
 Jupiter MOID = 2.12625 au 
 T_jup = 3.410 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457533.5 (2016-May-25.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09443367222102138 6.3609e-08  
q 2.349586373408968 1.6031e-07 au
tp 2456992.768611776080
(2014-Dec-01.26861178)
8.3556e-05 TDB
node 317.7905868896677 8.4157e-05 deg
peri 227.9006194055612 8.6622e-05 deg
i 3.352204061183286 4.0686e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      8206 days (22.47 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56926  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:19  

Additional Information
 Jupiter MOID = 2.12625 au 
 T_jup = 3.410 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.046078503708699E-15 -1.017280603398571E-14 2.560593050961752E-14 -3.564622349255289E-14 -9.78471475340639E-14 -5.483296358701207E-15
q -1.017280603398571E-14 2.569928425213124E-14 -1.019136686042274E-13 9.044307076325731E-14 2.457219844330158E-13 1.388614976267918E-14
tp 2.560593050961752E-14 -1.019136686042274E-13 6.981678999159724E-9 -4.293830576130994E-13 1.739707554809833E-9 -2.450331572855642E-12
node -3.564622349255289E-14 9.044307076325731E-14 -4.293830576130994E-13 7.082413449194249E-9 -7.068826361647324E-9 1.083369859960574E-10
peri -9.78471475340639E-14 2.457219844330158E-13 1.739707554809833E-9 -7.068826361647324E-9 7.503392820230097E-9 -1.085932195541092E-10
i -5.483296358701207E-15 1.388614976267918E-14 -2.450331572855642E-12 1.083369859960574E-10 -1.085932195541092E-10 1.655337945441124E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.67   n/a E2021B55  

192490 (1998 HU23)          Discovered 1998-Apr-28 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1998 HU23 = 2002 EQ59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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