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JPL Small-Body Database Browser
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40000 (1998 HZ87)
Classification: Main-belt Asteroid          SPK-ID: 2040000
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1325954297578553 3.8206e-08  
a 2.591643627036077 1.6131e-08 au
q 2.248003526530021 9.7098e-08 au
i 13.76873341954544 6.8756e-06 deg
node 229.4668759412673 1.684e-05 deg
peri 118.8565791056312 3.4026e-05 deg
M 252.8315212475668 3.0627e-05 deg
tp 2459054.155222941733
(2020-Jul-23.65522294)
0.00013217 TDB
period 1523.91712712742
4.17
1.4228e-05
3.895e-08
d
yr
n .236233318460433 2.2056e-09 deg/d
Q 2.935283727542132 1.827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      7688 days (21.05 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56588  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:12:19  

Additional Information
 Earth MOID = 1.27871 au 
 Jupiter MOID = 2.56723 au 
 T_jup = 3.367 
[ show covariance matrix ]

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 14.9   n/a MPO337582  

40000 (1998 HZ87)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HZ87 = 1999 TD107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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