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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693263460490019 4.5558e-08  
a 2.296886049325834 6.8482e-09 au
q 1.907962727302563 1.0376e-07 au
i 11.03369585234991 4.4485e-06 deg
node 157.450320805112 2.0424e-05 deg
peri 200.4704774831763 2.3281e-05 deg
M 78.60060269636668 1.0367e-05 deg
tp 2458722.892639267963
(2019-Aug-27.39263927)
3.6507e-05 TDB
period 1271.474345427037
3.48
5.6864e-06
1.557e-08
d
yr
n .2831358739519754 1.2663e-09 deg/d
Q 2.685809371349105 8.0078e-09 au
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      7839 days (21.46 yr)  
   first obs. used      1998-08-03  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:43:22  

Additional Information
 Earth MOID = .906614 au 
 Jupiter MOID = 2.75664 au 
 T_jup = 3.551 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457102.5 (2015-Mar-21.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704322342341043 4.5705e-08  
q 1.904787799465475 1.042e-07 au
tp 2457451.248328073716
(2016-Mar-03.74832807)
3.6067e-05 TDB
node 157.527501005089 2.041e-05 deg
peri 200.337421229437 2.3209e-05 deg
i 11.03940025190652 4.4522e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      7839 days (21.46 yr)  
   first obs. used      1998-08-03  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:43:22  

Additional Information
 Jupiter MOID = 2.75664 au 
 T_jup = 3.551 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.088905291729478E-15 -4.755668565161489E-15 4.731604975852361E-13 2.815592737151916E-14 1.362638970169253E-13 -6.109170673970258E-15
q -4.755668565161489E-15 1.085806751010093E-14 -1.104847514214927E-12 -6.39958683234456E-14 -3.21749479295541E-13 1.409866598134999E-14
tp 4.731604975852361E-13 -1.104847514214927E-12 1.300839917754275E-9 1.710963973175781E-11 4.126300174312815E-10 2.247061709216834E-12
node 2.815592737151916E-14 -6.39958683234456E-14 1.710963973175781E-11 4.165613417175037E-10 -4.023951815720602E-10 3.274341332643304E-11
peri 1.362638970169253E-13 -3.21749479295541E-13 4.126300174312815E-10 -4.023951815720602E-10 5.38650875410114E-10 -3.151125448173224E-11
i -6.109170673970258E-15 1.409866598134999E-14 2.247061709216834E-12 3.274341332643304E-11 -3.151125448173224E-11 1.982249047082914E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO344855  
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. 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:
[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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