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JPL Small-Body Database Browser
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58872 (1998 HY117)
Classification: Main-belt Asteroid          SPK-ID: 2058872
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2296366135216795 3.1748e-08  
a 2.605618488355187 1.3456e-08 au
q 2.007273082559824 8.3225e-08 au
i 12.53685086255427 6.4882e-06 deg
node 70.33272500028843 1.8141e-05 deg
peri 52.30414257511957 2.3925e-05 deg
M 159.8554194383513 1.614e-05 deg
tp 2458318.334846105959
(2018-Jul-18.83484611)
6.6542e-05 TDB
period 1536.2598044201
4.21
1.1901e-05
3.258e-08
d
yr
n .2343353636957852 1.8153e-09 deg/d
Q 3.20396389415055 1.6546e-08 au
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      25043 days (68.56 yr)  
   first obs. used      1950-12-09  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:38:25  

Additional Information
 Earth MOID = 1.04931 au 
 Jupiter MOID = 2.01574 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457181.5 (2015-Jun-08.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2304109071748579 3.1981e-08  
q 2.002097659377466 8.4173e-08 au
tp 2456783.452507344328
(2014-May-05.95250734)
6.1353e-05 TDB
node 70.38712710815904 1.8101e-05 deg
peri 51.75969994023885 2.3921e-05 deg
i 12.55835043265928 6.5016e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      25043 days (68.56 yr)  
   first obs. used      1950-12-09  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:38:25  

Additional Information
 Jupiter MOID = 2.01574 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.022767368371233E-15 -2.671374508972792E-15 -7.904427247291427E-13 -2.34491779957474E-15 -2.026825165442823E-13 -3.863349913893353E-16
q -2.671374508972792E-15 7.085091400253746E-15 2.258603563245478E-12 4.940382986330139E-15 5.861550506311189E-13 1.416938402394589E-15
tp -7.904427247291427E-13 2.258603563245478E-12 3.764205732320583E-9 1.386264142706634E-12 9.715562889500037E-10 -2.913718740330983E-13
node -2.34491779957474E-15 4.940382986330139E-15 1.386264142706634E-12 3.276602654116525E-10 -3.191471860319811E-10 -5.253315415244153E-11
peri -2.026825165442823E-13 5.861550506311189E-13 9.715562889500037E-10 -3.191471860319811E-10 5.722058362238116E-10 5.130484000172179E-11
i -3.863349913893353E-16 1.416938402394589E-15 -2.913718740330983E-13 -5.253315415244153E-11 5.130484000172179E-11 4.227110761512666E-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 15.2   n/a MPO474468  
diameter diameter 5.096 km 0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58872 (1998 HY117)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HY117 = 2000 SE355 = 2002 BA30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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