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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170474175509218 3.9098e-08  
a 2.154645618864291 7.4254e-09 au
q 1.686985351552389 8.7957e-08 au
i 5.159582763762225 5.3923e-06 deg
node 2.903457439493632 3.642e-05 deg
peri 287.1191961384981 3.8856e-05 deg
M 305.747170663288 1.2469e-05 deg
tp 2459174.593314617774
(2020-Nov-21.09331462)
4.0152e-05 TDB
period 1155.213359904684
3.16
5.9717e-06
1.635e-08
d
yr
n .3116307450164041 1.6109e-09 deg/d
Q 2.622305886176193 9.0371e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      11214 days (30.70 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:34:50  

Additional Information
 Earth MOID = .680092 au 
 Jupiter MOID = 2.57942 au 
 T_jup = 3.666 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456940.5 (2014-Oct-10.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2174167119360265 3.9133e-08  
q 1.68633556117949 8.8086e-08 au
tp 2456863.734701333356
(2014-Jul-25.23470133)
3.9803e-05 TDB
node 2.926364087724475 3.6415e-05 deg
peri 287.0981056954325 3.8843e-05 deg
i 5.160663459971505 5.3916e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      11214 days (30.70 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:34:50  

Additional Information
 Jupiter MOID = 2.57942 au 
 T_jup = 3.666 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.531412108550164E-15 -3.442446800569501E-15 2.030627532769438E-13 7.597780762151654E-15 1.34275871408922E-13 4.382381350554839E-17
q -3.442446800569501E-15 7.759186023422788E-15 -4.689522548308419E-13 -1.752880342947855E-14 -3.049301982669225E-13 1.617162611698247E-16
tp 2.030627532769438E-13 -4.689522548308419E-13 1.584291990051207E-9 -1.283737533127175E-11 5.404525265872329E-10 2.425687929752071E-12
node 7.597780762151654E-15 -1.752880342947855E-14 -1.283737533127175E-11 1.326054377804457E-9 -1.323727839024244E-9 5.39358906485541E-11
peri 1.34275871408922E-13 -3.049301982669225E-13 5.404525265872329E-10 -1.323727839024244E-9 1.508742373436028E-9 -5.289207523648228E-11
i 4.382381350554839E-17 1.617162611698247E-16 2.425687929752071E-12 5.39358906485541E-11 -5.289207523648228E-11 2.906977356862595E-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

[ show close-approach data ]
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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