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JPL Small-Body Database Browser
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48950 (1998 QW17)
Classification: Main-belt Asteroid          SPK-ID: 2048950
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904168682648072 5.3268e-08  
a 2.377455049562941 1.4397e-08 au
q 1.924747504584813 1.2905e-07 au
i 3.543450574429263 5.293e-06 deg
node 292.8289624568952 9.7212e-05 deg
peri 23.32853834121491 9.8663e-05 deg
M 238.8922780491211 2.1943e-05 deg
tp 2459050.939256484553
(2020-Jul-20.43925648)
8.4267e-05 TDB
period 1338.957827975743
3.67
1.2162e-05
3.33e-08
d
yr
n .2688658242091563 2.4422e-09 deg/d
Q 2.830162594541068 1.7138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      10027 days (27.45 yr)  
   first obs. used      1991-11-09  
   last obs. used      2019-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60796  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:37  

Additional Information
 Earth MOID = .910854 au 
 Jupiter MOID = 2.45644 au 
 T_jup = 3.513 
[ 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 MPO432047  
rotation period rot_per 5.523 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

48950 (1998 QW17)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QW17 = 2007 CP78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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