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24978 (1998 HJ151)
Classification: TransNeptunian Object          SPK-ID: 2024978
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04876679538593093 0.00024191  
a 43.62927074332813 0.017498 au
q 41.50161102415086 0.012324 au
i 2.394740117904229 0.0010114 deg
node 50.45678578729785 0.002006 deg
peri 135.2047859873188 0.3562 deg
M 68.13316420317877 0.34936 deg
tp 2439079.028447106168
(1965-Nov-14.52844711)
91.791 TDB
period 105260.4828047481
288.19
63.322
0.1734
d
yr
n .003420086915882557 2.0574e-06 deg/d
Q 45.75693046250539 0.018351 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      3301 days (9.04 yr)  
   first obs. used      1998-04-28  
   last obs. used      2007-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .16224  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-05 23:14:19  

Additional Information
 Earth MOID = 40.504 au 
 Jupiter MOID = 36.0405 au 
 T_jup = 5.899 
[ hide covariance matrix ]
Orbital Elements at Epoch 2452001.5 (2001-Apr-02.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04699155998786716 0.00023265  
q 41.06204311231429 0.015178 au
tp 2435354.317528273590
(1955-Sep-03.81752827)
93.677 TDB
node 50.43206564562234 0.0020281 deg
peri 120.8005040615767 0.37409 deg
i 2.39695429667325 0.0010161 deg
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      3301 days (9.04 yr)  
   first obs. used      1998-04-28  
   last obs. used      2007-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .16224  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-05 23:14:19  

Additional Information
 Jupiter MOID = 36.0405 au 
 T_jup = 5.899 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.412710479267879E-8 -7.83658196818701E-7 .001432616654808669 -1.665185011245817E-9 3.08754050251396E-6 1.10577293798022E-10
q -7.83658196818701E-7 .0002303670601308313 1.361748069599247 -3.374190263562364E-7 .005485216504817794 2.325234017207075E-8
tp .001432616654808669 1.361748069599247 8775.292032475705 -.002318617575611606 35.02712054381416 .0001592883256770724
node -1.665185011245817E-9 -3.374190263562364E-7 -.002318617575611606 4.113113128950338E-6 -1.330458228187992E-5 1.509659227966261E-6
peri 3.08754050251396E-6 .005485216504817794 35.02712054381416 -1.330458228187992E-5 .1399468002359949 -8.764522665607123E-7
i 1.10577293798022E-10 2.325234017207075E-8 .0001592883256770724 1.509659227966261E-6 -8.764522665607123E-7 1.032506962635759E-6

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.5   n/a PDS3 (MPO 12471)  

24978 (1998 HJ151)          Discovered 1998-Apr-28 by Luu, J., Trujillo, C., Tholen, D., Jewitt, D. at Mauna Kea
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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