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85558 (1998 AB3)
Classification: Main-belt Asteroid          SPK-ID: 2085558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1525686529209116 5.0899e-08  
a 3.192170683735841 2.4908e-08 au
q 2.705145502624639 1.7214e-07 au
i 9.450993243548611 5.1659e-06 deg
node 304.6176657348499 3.6223e-05 deg
peri 105.3917841656608 4.1138e-05 deg
M 16.19479859717348 1.9109e-05 deg
tp 2458906.786828739162
(2020-Feb-27.28682874)
0.00011036 TDB
period 2083.183773572194
5.70
2.4382e-05
6.675e-08
d
yr
n .1728124059754366 2.0226e-09 deg/d
Q 3.679195864847044 2.8708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      8061 days (22.07 yr)  
   first obs. used      1998-01-03  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5241  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:34:26  

Additional Information
 Earth MOID = 1.73547 au 
 Jupiter MOID = 1.76699 au 
 T_jup = 3.157 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457086.5 (2015-Mar-05.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471570692877492 5.0286e-08  
q 2.725771123045688 1.6862e-07 au
tp 2456818.337272466543
(2014-Jun-09.83727247)
0.00011528 TDB
node 304.9728204249676 3.5999e-05 deg
peri 104.716342207446 4.1452e-05 deg
i 9.474320140207601 5.1803e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      8061 days (22.07 yr)  
   first obs. used      1998-01-03  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5241  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:34:26  

Additional Information
 Jupiter MOID = 1.76699 au 
 T_jup = 3.157 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.528703985095471E-15 -8.421220883291004E-15 -2.094022358455963E-12 -1.073386963860749E-14 -3.804632379949421E-13 -6.302520031383774E-15
q -8.421220883291004E-15 2.84335919178554E-14 6.483931450040413E-12 3.836602056307982E-14 1.188805613208495E-12 2.296118335356565E-14
tp -2.094022358455963E-12 6.483931450040413E-12 1.328843922777194E-8 2.415431632131708E-11 2.433602545651563E-9 8.741653028320037E-12
node -1.073386963860749E-14 3.836602056307982E-14 2.415431632131708E-11 1.295918131392611E-9 -1.272829232404469E-9 6.928516755058966E-11
peri -3.804632379949421E-13 1.188805613208495E-12 2.433602545651563E-9 -1.272829232404469E-9 1.71825456606873E-9 -6.664573047813138E-11
i -6.302520031383774E-15 2.296118335356565E-14 8.741653028320037E-12 6.928516755058966E-11 -6.664573047813138E-11 2.683590977377393E-11

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 14.0   n/a MPO337903  
diameter diameter 7.918 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85558 (1998 AB3)          Discovered 1998-Jan-03 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 AB3 = 2002 XF15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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