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74226 (1998 SZ12)
Classification: Main-belt Asteroid          SPK-ID: 2074226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07913227992688143 4.7136e-08  
a 2.687346202565496 2.01e-08 au
q 2.474690370603641 1.3535e-07 au
i 13.44604698935099 5.8439e-06 deg
node 90.34606700104575 2.0669e-05 deg
peri 206.9209845589463 4.3885e-05 deg
M 28.56925327946025 3.912e-05 deg
tp 2458872.803132541775
(2020-Jan-24.30313254)
0.00017487 TDB
period 1609.103039385755
4.41
1.8053e-05
4.943e-08
d
yr
n .2237271269697081 2.5101e-09 deg/d
Q 2.900002034527351 2.1691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      7612 days (20.84 yr)  
   first obs. used      1998-09-21  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55426  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:13:00  

Additional Information
 Earth MOID = 1.46498 au 
 Jupiter MOID = 2.25017 au 
 T_jup = 3.330 
[ 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 14.8   n/a MPO474628  
diameter diameter 2.885 km 0.448 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.307   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74226 (1998 SZ12)          Discovered 1998-Sep-21 by Tucker, R. A. at Goodricke-Pigott
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SZ12 = 2001 FK151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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