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48989 (1998 QS47)
Classification: Main-belt Asteroid          SPK-ID: 2048989
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125245826722442 5.2501e-08  
a 2.403878579388268 1.0349e-08 au
q 1.892995287509029 1.2574e-07 au
i 3.896672054167352 5.1979e-06 deg
node 156.1043767456722 7.0416e-05 deg
peri 207.838153357777 7.1178e-05 deg
M 287.5610907073576 1.3344e-05 deg
tp 2459274.428121936596
(2021-Feb-28.92812194)
5.1429e-05 TDB
period 1361.341920524897
3.73
8.7914e-06
2.407e-08
d
yr
n .2644449528603319 1.7077e-09 deg/d
Q 2.914761871267507 1.2549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      760  
   data-arc span      8949 days (24.50 yr)  
   first obs. used      1995-12-30  
   last obs. used      2020-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5272  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:50  

Additional Information
 Earth MOID = .891666 au 
 Jupiter MOID = 2.54274 au 
 T_jup = 3.490 
[ 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 15.6   n/a MPO436126  
rotation period rot_per 5.11 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

48989 (1998 QS47)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QS47 = 2000 AO207 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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