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19460 (1998 HW13)
Classification: Main-belt Asteroid          SPK-ID: 2019460
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2388915274272706 4.3188e-08  
a 2.656570271024793 1.2895e-08 au
q 2.021938141261802 1.1994e-07 au
i 13.29902478563403 4.9731e-06 deg
node 347.1696696923074 1.6711e-05 deg
peri 312.6152785008978 1.923e-05 deg
M 357.790111131959 1.0218e-05 deg
tp 2459210.208414779299
(2020-Dec-26.70841478)
4.4913e-05 TDB
period 1581.540760303365
4.33
1.1515e-05
3.153e-08
d
yr
n .2276261282895713 1.6574e-09 deg/d
Q 3.291202400787784 1.5976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1556  
   data-arc span      12403 days (33.96 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:54:20  

Additional Information
 Earth MOID = 1.03068 au 
 Jupiter MOID = 2.09278 au 
 T_jup = 3.309 
[ 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 13.86   n/a E2021B10  

19460 (1998 HW13)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20001211/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
2162-Dec-07 02:56 00:02 Iris 0.017375392532229 0.0173601381921607 0.0173906549068386 8.18787687852806 8.18787683812008 2511054.622121414 2.24340913328843 962.909733745058 47.4750575366272 37.8609152965174 33664.5351563594 T 26 CATAB v2.0f-lin.ifort 2021-Apr-13 02:54:25 2021-Apr-13 02:54

Alternate Designations
 1998 HW13 = 1986 RE15 = 1986 RW7 = 1999 RG32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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