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JPL Small-Body Database Browser
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11368 (1998 HN115)
Classification: Main-belt Asteroid          SPK-ID: 2011368
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280617327218484 3.5084e-08  
a 2.792856885086428 1.4158e-08 au
q 2.435198793138115 9.6291e-08 au
i 10.15227228628786 4.0768e-06 deg
node 128.3495943462732 2.3114e-05 deg
peri 152.3639817285471 2.8381e-05 deg
M 211.2300559377671 1.7851e-05 deg
tp 2459705.005111193244
(2022-May-05.50511119)
8.6279e-05 TDB
period 1704.792198641102
4.67
1.2964e-05
3.549e-08
d
yr
n .2111694318445132 1.6058e-09 deg/d
Q 3.15051497703474 1.5971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1913  
   data-arc span      12528 days (34.30 yr)  
   first obs. used      1985-09-17  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:26:58  

Additional Information
 Earth MOID = 1.42378 au 
 Jupiter MOID = 2.03741 au 
 T_jup = 3.294 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456747.5 (2014-Mar-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304986143271644 3.5185e-08  
q 2.426071438337989 9.6801e-08 au
tp 2456294.744020996862
(2013-Jan-02.24402100)
7.8866e-05 TDB
node 128.4342192972553 2.3078e-05 deg
peri 151.944140192066 2.8143e-05 deg
i 10.16323413609534 4.0819e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1913  
   data-arc span      12528 days (34.30 yr)  
   first obs. used      1985-09-17  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:26:58  

Additional Information
 Jupiter MOID = 2.03741 au 
 T_jup = 3.294 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.23797955021266E-15 -3.379856316914733E-15 5.598908145021958E-14 -3.317509161325435E-15 1.89301533802262E-14 -2.533611340180572E-16
q -3.379856316914733E-15 9.37037676724976E-15 -1.03473429722708E-13 9.519857809867525E-15 -3.413518941750103E-14 9.199193848594795E-16
tp 5.598908145021958E-14 -1.03473429722708E-13 6.219882051015811E-9 8.049893013608451E-12 1.290256226127956E-9 -1.914837019052456E-12
node -3.317509161325435E-15 9.519857809867525E-15 8.049893013608451E-12 5.326072186133845E-10 -5.221611276141928E-10 6.53367183713402E-12
peri 1.89301533802262E-14 -3.413518941750103E-14 1.290256226127956E-9 -5.221611276141928E-10 7.920152639897852E-10 -6.832406803905596E-12
i -2.533611340180572E-16 9.199193848594795E-16 -1.914837019052456E-12 6.53367183713402E-12 -6.832406803905596E-12 1.66615606653623E-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 13.0   n/a MPO416837  
diameter diameter 7.986 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.210   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11368 (1998 HN115)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HN115 = 1985 SQ = 1986 XW4 = 1989 LL1 = 1996 XP23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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