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22667 (1998 QA26)
Classification: Main-belt Asteroid          SPK-ID: 2022667
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07799885985225721 3.6615e-08  
a 3.03190667635195 1.4717e-08 au
q 2.795421412418051 1.0986e-07 au
i 5.678105505509042 3.9698e-06 deg
node 154.1737462607143 3.7476e-05 deg
peri 221.8289606241599 4.485e-05 deg
M 55.8989210398508 2.342e-05 deg
tp 2458901.085315993354
(2020-Feb-21.58531599)
0.00012572 TDB
period 1928.289209116373
5.28
1.404e-05
3.844e-08
d
yr
n .1866939867204712 1.3593e-09 deg/d
Q 3.268391940285849 1.5865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1749  
   data-arc span      9905 days (27.12 yr)  
   first obs. used      1994-01-07  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5114  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:08:59  

Additional Information
 Earth MOID = 1.79759 au 
 Jupiter MOID = 2.15523 au 
 T_jup = 3.231 
[ 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 13.73   n/a E2021B10  
diameter diameter 6.331 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.27055 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.175   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22667 (1998 QA26)          Discovered 1998-Aug-25 by Visnjan at Visnjan
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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