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150208 (1998 SR50)
Classification: Main-belt Asteroid          SPK-ID: 2150208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1909247897682249 7.7821e-08  
a 2.421952717926651 1.2644e-08 au
q 1.959541904427924 1.8746e-07 au
i 2.686626265920894 6.7306e-06 deg
node 2.221904956277642 0.00010921 deg
peri 20.5111535038819 0.00010998 deg
M 320.8144321547171 1.4169e-05 deg
tp 2459350.354766529008
(2021-May-15.85476653)
5.4717e-05 TDB
period 1376.724108310631
3.77
1.0781e-05
2.952e-08
d
yr
n .2614902999278145 2.0477e-09 deg/d
Q 2.884363531425377 1.5058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      9947 days (27.23 yr)  
   first obs. used      1992-01-30  
   last obs. used      2019-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:34  

Additional Information
 Earth MOID = .961674 au 
 Jupiter MOID = 2.57786 au 
 T_jup = 3.486 
[ 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 16.6   n/a MPO469594  

150208 (1998 SR50)          Discovered 1998-Sep-26 by Spacewatch at Kitt Peak
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ show close-approach data ]
Alternate Designations
 1998 SR50 = 2002 XJ74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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