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100847 (1998 HN26)
Classification: Main-belt Asteroid          SPK-ID: 2100847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1713786707924858 4.3453e-08  
a 2.359378387288105 1.0109e-08 au
q 1.955031255378151 1.0096e-07 au
i 4.621174907094749 3.872e-06 deg
node 90.93196499536994 6.1175e-05 deg
peri 82.71743602109294 6.2312e-05 deg
M 72.19741359885229 1.2358e-05 deg
tp 2458735.030910067122
(2019-Sep-08.53091007)
4.4818e-05 TDB
period 1323.716011585148
3.62
8.5077e-06
2.329e-08
d
yr
n .2719616570694046 1.7479e-09 deg/d
Q 2.763725519198059 1.1842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      9718 days (26.61 yr)  
   first obs. used      1993-11-20  
   last obs. used      2020-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:55  

Additional Information
 Earth MOID = .966621 au 
 Jupiter MOID = 2.21045 au 
 T_jup = 3.528 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456678.5 (2014-Jan-21.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1716185319396832 4.339e-08  
q 1.953915231979985 1.0088e-07 au
tp 2456088.579583367549
(2012-Jun-10.07958337)
4.1934e-05 TDB
node 90.96377810587761 6.1163e-05 deg
peri 82.63012349249729 6.2298e-05 deg
i 4.621922621407641 3.8727e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      9718 days (26.61 yr)  
   first obs. used      1993-11-20  
   last obs. used      2020-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:55  

Additional Information
 Jupiter MOID = 2.21045 au 
 T_jup = 3.528 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.882666434563651E-15 -4.362386662896884E-15 4.547337723379108E-13 -1.057283346081729E-14 1.513504641707631E-13 -3.148392268702466E-15
q -4.362386662896884E-15 1.017642284981259E-14 -1.086237182798394E-12 2.549043164580022E-14 -3.534427173728805E-13 7.327890559864272E-15
tp 4.547337723379108E-13 -1.086237182798394E-12 1.758498859192471E-9 -1.012975351770202E-11 5.216154548998919E-10 -2.709429982595083E-12
node -1.057283346081729E-14 2.549043164580022E-14 -1.012975351770202E-11 3.740892516679485E-9 -3.731396727369735E-9 -3.553106547271591E-11
peri 1.513504641707631E-13 -3.534427173728805E-13 5.216154548998919E-10 -3.731396727369735E-9 3.881036522518428E-9 3.466153149586546E-11
i -3.148392268702466E-15 7.327890559864272E-15 -2.709429982595083E-12 -3.553106547271591E-11 3.466153149586546E-11 1.499790363413068E-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 16.3   n/a MPO417509  

100847 (1998 HN26)          Discovered 1998-Apr-20 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HN26 = 2000 YK40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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