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19924 (1979 MQ6)
Classification: Main-belt Asteroid          SPK-ID: 2019924
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066865567199816 3.3636e-08  
a 2.23875453943184 8.4497e-09 au
q 1.999909526278629 7.545e-08 au
i 4.507347327575487 3.4716e-06 deg
node 272.571966466352 5.1079e-05 deg
peri 306.4873759435691 5.5134e-05 deg
M 197.8878772726237 2.3761e-05 deg
tp 2459751.461354739258
(2022-Jun-20.96135474)
8.2541e-05 TDB
period 1223.511754513826
3.35
6.9268e-06
1.896e-08
d
yr
n .2942350154560219 1.6658e-09 deg/d
Q 2.477599552585051 9.3512e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      15180 days (41.56 yr)  
   first obs. used      1979-06-24  
   last obs. used      2021-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:09:18  

Additional Information
 Earth MOID = .994345 au 
 Jupiter MOID = 2.51009 au 
 T_jup = 3.625 
[ 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 15.25   n/a E2021B10  
rotation period rot_per 5.333 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

19924 (1979 MQ6)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1979 MQ6 = 2000 WB75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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