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JPL Small-Body Database Browser
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58839 (1998 HZ50)
Classification: Main-belt Asteroid          SPK-ID: 2058839
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777895104928885 3.9207e-08  
a 2.801257110161512 1.5707e-08 au
q 2.303222979781173 1.1394e-07 au
i 6.742928118399829 5.1338e-06 deg
node 225.6568307300177 3.653e-05 deg
peri 255.1924226891853 3.9919e-05 deg
M 327.7802388585625 1.8101e-05 deg
tp 2459153.766662497463
(2020-Oct-31.26666250)
8.6772e-05 TDB
period 1712.489371255
4.69
1.4404e-05
3.944e-08
d
yr
n .2102202828483388 1.7681e-09 deg/d
Q 3.299291240541852 1.85e-08 au
  Orbit Determination Parameters
   # obs. used (total)      942  
   data-arc span      7951 days (21.77 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:37:36  

Additional Information
 Earth MOID = 1.33025 au 
 Jupiter MOID = 1.86251 au 
 T_jup = 3.292 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457114.5 (2015-Apr-02.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1765486976750953 3.9492e-08  
q 2.306767754379659 1.1464e-07 au
tp 2457443.719555203177
(2016-Feb-25.21955520)
8.0623e-05 TDB
node 225.6933015644608 3.6577e-05 deg
peri 255.6370172369852 3.9985e-05 deg
i 6.736746118988894 5.1318e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      942  
   data-arc span      7951 days (21.77 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:37:36  

Additional Information
 Jupiter MOID = 1.86251 au 
 T_jup = 3.292 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.559634387341644E-15 -4.500603791763904E-15 -7.35086904684883E-14 1.918311161926887E-15 5.559805188622986E-14 2.084978594120807E-16
q -4.500603791763904E-15 1.31429076159023E-14 5.912163248491952E-13 -6.294929203671739E-15 -9.372364222709573E-14 6.620163206377761E-16
tp -7.35086904684883E-14 5.912163248491952E-13 6.4999972579981E-9 -1.045504341513699E-11 1.313987970329878E-9 3.214536478119547E-12
node 1.918311161926887E-15 -6.294929203671739E-15 -1.045504341513699E-11 1.337909763386989E-9 -1.330486017993203E-9 -5.637490787527913E-11
peri 5.559805188622986E-14 -9.372364222709573E-14 1.313987970329878E-9 -1.330486017993203E-9 1.598762653595885E-9 5.667000955058365E-11
i 2.084978594120807E-16 6.620163206377761E-16 3.214536478119547E-12 -5.637490787527913E-11 5.667000955058365E-11 2.633540517292027E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO449378  
diameter diameter 6.959 km 2.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.034   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

58839 (1998 HZ50)          Discovered 1998-Apr-25 by LONEOS at Anderson Mesa
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HZ50 = 2000 SC282 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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