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100857 (1998 HZ43)
Classification: Main-belt Asteroid          SPK-ID: 2100857
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480445460805881 4.7165e-08  
a 2.7843668283006 1.5158e-08 au
q 2.372156505082991 1.3525e-07 au
i 8.543722870959355 4.553e-06 deg
node 37.66195154539525 2.7386e-05 deg
peri 119.4993472903219 3.1755e-05 deg
M 308.0773939224098 1.6513e-05 deg
tp 2459245.260924577140
(2021-Jan-30.76092458)
7.8761e-05 TDB
period 1697.024465915632
4.65
1.3858e-05
3.794e-08
d
yr
n .2121360105470027 1.7323e-09 deg/d
Q 3.196577151518209 1.7402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      8250 days (22.59 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57636  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:52  

Additional Information
 Earth MOID = 1.39447 au 
 Jupiter MOID = 1.82185 au 
 T_jup = 3.300 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457102.5 (2015-Mar-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1481436268512249 4.7449e-08  
q 2.370928180941662 1.3603e-07 au
tp 2457551.436569832614
(2016-Jun-11.93656983)
7.3e-05 TDB
node 37.68206488091125 2.74e-05 deg
peri 120.0657726809867 3.1716e-05 deg
i 8.54334719240571 4.5519e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      8250 days (22.59 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57636  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:52  

Additional Information
 Jupiter MOID = 1.82185 au 
 T_jup = 3.300 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.251382207028048E-15 -6.427235084605309E-15 3.96654773256273E-14 6.146318675567913E-15 1.346571653248462E-13 -5.384555974066409E-15
q -6.427235084605309E-15 1.850293374843397E-14 1.780402497883363E-13 -1.653478841971354E-14 -3.343119918351874E-13 1.686962501473692E-14
tp 3.96654773256273E-14 1.780402497883363E-13 5.329043496745413E-9 -4.825498408278055E-12 1.164960243096383E-9 7.542519759792837E-12
node 6.146318675567913E-15 -1.653478841971354E-14 -4.825498408278055E-12 7.50732935249673E-10 -7.42839697319709E-10 3.576011153828576E-12
peri 1.346571653248462E-13 -3.343119918351874E-13 1.164960243096383E-9 -7.42839697319709E-10 1.005901376254805E-9 -2.230244434765133E-12
i -5.384555974066409E-15 1.686962501473692E-14 7.542519759792837E-12 3.576011153828576E-12 -2.230244434765133E-12 2.072017467125186E-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 15.2   n/a MPO412742  

100857 (1998 HZ43)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HZ43 = 2000 SB286 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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