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JPL Small-Body Database Browser
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13237 (1998 HC98)
Classification: Main-belt Asteroid          SPK-ID: 2013237
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170474194289455 4.0018e-08  
a 2.15464561958149 8.595e-09 au
q 1.686985348067447 8.9234e-08 au
i 5.159585003201762 5.5477e-06 deg
node 2.903395518082119 4.633e-05 deg
peri 287.1192568878892 4.8293e-05 deg
M 305.7471708342822 1.2483e-05 deg
tp 2459174.593314155989
(2020-Nov-21.09331416)
4.0203e-05 TDB
period 1155.213360481474
3.16
6.9123e-06
1.892e-08
d
yr
n .311630744860809 1.8647e-09 deg/d
Q 2.622305891095534 1.0461e-08 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      11074 days (30.32 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50673  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:35:18  

Additional Information
 Earth MOID = .680092 au 
 Jupiter MOID = 2.57942 au 
 T_jup = 3.666 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456042.5 (2012-Apr-25.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2162193846360809 4.0018e-08  
q 1.689867620150682 8.9274e-08 au
tp 2455708.044461764641
(2011-May-26.54446176)
4.2726e-05 TDB
node 3.012190339596241 4.6288e-05 deg
peri 287.0459358045937 4.828e-05 deg
i 5.161232085500798 5.5483e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      11074 days (30.32 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50673  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:35:18  

Additional Information
 Jupiter MOID = 2.57942 au 
 T_jup = 3.666 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.601449439068617E-15 -3.56393500099028E-15 2.796313899299901E-13 9.695302085658098E-15 1.00120104821677E-13 4.588299639600356E-16
q -3.56393500099028E-15 7.969844903660222E-15 -7.09124121261804E-13 -2.1461868234547E-14 -2.487823819100821E-13 -9.979591173988139E-16
tp 2.796313899299901E-13 -7.09124121261804E-13 1.825511237349856E-9 1.958552074024343E-12 5.973925081368364E-10 1.301746926124542E-12
node 9.695302085658098E-15 -2.1461868234547E-14 1.958552074024343E-12 2.142606442010198E-9 -2.132253382704249E-9 3.169968082784357E-11
peri 1.00120104821677E-13 -2.487823819100821E-13 5.973925081368364E-10 -2.132253382704249E-9 2.33097567755808E-9 -3.111492899737678E-11
i 4.588299639600356E-16 -9.979591173988139E-16 1.301746926124542E-12 3.169968082784357E-11 -3.111492899737678E-11 3.078357150818774E-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 15.5   n/a MPO467825  
diameter diameter 4.488 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13237 (1998 HC98)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2155-Oct-02 09:08 00:04 Amphi 0.0369973269183933 0.0369833233057838 0.0370113305427268 3.92740533347034 3.92740529390663 2508431.880689259 4.29855625633948 698.601323117159 41.7924651666273 2.59811155899872 9926.8670263674 T 17 CATAB v2.0f-lin.ifort 2020-Feb-22 20:35:28 2020-Feb-22 20:35

Alternate Designations
 1998 HC98 = 1989 TR15 = 1992 PO5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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