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JPL Small-Body Database Browser
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523940 (1998 HW15)
Classification: Main-belt Asteroid          SPK-ID: 2523940
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07945856482782876 6.9439e-08  
a 2.573728298073332 2.9267e-08 au
q 2.369223541251654 1.9365e-07 au
i 5.394998271411354 7.1394e-06 deg
node 123.3987933888316 8.1599e-05 deg
peri 193.9734786621024 9.8031e-05 deg
M 292.9003282975705 5.6562e-05 deg
tp 2458881.599690770495
(2020-Feb-02.09969077)
0.00023759 TDB
period 1508.142828569371
4.13
2.5725e-05
7.043e-08
d
yr
n .2387041818456261 4.0716e-09 deg/d
Q 2.778233054895009 3.1593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      7790 days (21.33 yr)  
   first obs. used      1998-04-22  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61963  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:40:52  

Additional Information
 Earth MOID = 1.35514 au 
 Jupiter MOID = 2.43106 au 
 T_jup = 3.418 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   .35009 MPO457200 autocmod 2.6q

523940 (1998 HW15)          Discovered 1998-Apr-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

Alternate Designations
 1998 HW15 = 2007 MR10 = 2016 TC48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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