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16959 (1998 QE17)
Classification: Main-belt Asteroid          SPK-ID: 2016959
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3071424519775884 1.6328e-08  
a 2.624624924654365 8.8961e-09 au
q 1.81849118977453 4.2502e-08 au
i 10.60219603380476 7.9018e-07 deg
node 337.7189764178028 4.4575e-06 deg
peri 73.75563920828074 5.0462e-06 deg
M 36.8388717219314 3.3306e-06 deg
tp 2459041.571011372940
(2020-Jul-11.07101137)
1.3959e-05 TDB
period 1553.099572039278
4.25
7.8963e-06
2.162e-08
d
yr
n .231794539436584 1.1785e-09 deg/d
Q 3.4307586595342 1.1629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1881  
   data-arc span      28285 days (77.44 yr)  
   first obs. used      1943-10-05  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45651  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:48:36  

Additional Information
 Earth MOID = .860734 au 
 Jupiter MOID = 2.1344 au 
 T_jup = 3.311 
[ 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 13.26   n/a E2021B10  
rotation period rot_per 3.2266 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Avdellidou, C.; Ioannidis, P.; Skoulidou, D.K.; et al. (2012) Minor Planet Bull. 39, 103-104.]
[Ferrero, A. (2012) Minor Planet Bull. 39, 65-67.]
[Strabla, L.; Quadri, U.; Girelli, R. (2012) Minor Planet Bull. 39, 177-179.]
[Warner, B.D (2012) Minor Planet Bull. 39, 16-21.]

16959 (1998 QE17)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QE17 = 1943 TK = 1943 VC = 2000 AB137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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