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79550 (1998 QO46)
Classification: Main-belt Asteroid          SPK-ID: 2079550
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695678494809442 4.3246e-08  
a 2.296717797194065 6.6259e-09 au
q 1.907268299459256 9.7996e-08 au
i 11.03532029749615 4.3332e-06 deg
node 157.4473301637951 1.7021e-05 deg
peri 200.5081245996743 1.9045e-05 deg
M 190.6639067548184 8.8781e-06 deg
tp 2459994.507892257347
(2023-Feb-19.00789226)
3.2278e-05 TDB
period 1271.334640400243
3.48
5.5016e-06
1.506e-08
d
yr
n .2831669873218151 1.2254e-09 deg/d
Q 2.686167294928874 7.7495e-09 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      8369 days (22.91 yr)  
   first obs. used      1998-08-03  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:02:23  

Additional Information
 Earth MOID = .905116 au 
 Jupiter MOID = 2.75736 au 
 T_jup = 3.551 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.80   n/a MPO637108  
diameter diameter 2.466 km 0.579 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.957 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.]
geometric albedo albedo 0.183   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79550 (1998 QO46)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 QO46 = 2000 DJ97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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