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JPL Small-Body Database Browser
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154575 (2003 HD49)
Classification: Main-belt Asteroid          SPK-ID: 2154575
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2159470681128439 4.0573e-08  
a 2.59010033704977 1.5476e-08 au
q 2.030775763145784 1.0085e-07 au
i 6.006493088098326 5.1359e-06 deg
node 90.72902137308408 5.7896e-05 deg
peri 164.7249413573418 6.0239e-05 deg
M 15.39833273592315 1.9668e-05 deg
tp 2458935.375484015241
(2020-Mar-26.87548402)
8.2839e-05 TDB
period 1522.556120625857
4.17
1.3646e-05
3.736e-08
d
yr
n .2364444864285327 2.1191e-09 deg/d
Q 3.149424910953757 1.8818e-08 au
  Orbit Determination Parameters
   # obs. used (total)      559  
   data-arc span      9217 days (25.23 yr)  
   first obs. used      1994-01-08  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59498  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:53:08  

Additional Information
 Earth MOID = 1.01657 au 
 Jupiter MOID = 1.9129 au 
 T_jup = 3.379 
[ 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 15.9   n/a MPO320647  

154575 (2003 HD49)          Discovered 2003-Apr-30 by Spacewatch at Kitt Peak
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2003 HD49 = 1994 AW16 = 1999 LN27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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