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79748 (1998 SG157)
Classification: Main-belt Asteroid          SPK-ID: 2079748
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135674123648674 4.4167e-08  
a 2.378862471395181 1.1814e-08 au
q 2.056112390307921 1.0667e-07 au
i 2.186391347474633 4.961e-06 deg
node 35.4920057399551 0.00012574 deg
peri 350.4128088738773 0.00012734 deg
M 316.7618085049928 2.3912e-05 deg
tp 2459161.459809440964
(2020-Nov-07.95980944)
8.9757e-05 TDB
period 1340.146971813987
3.67
9.9833e-06
2.733e-08
d
yr
n .2686272532576883 2.0011e-09 deg/d
Q 2.701612552482441 1.3417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      488  
   data-arc span      8572 days (23.47 yr)  
   first obs. used      1995-12-20  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54627  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:46:06  

Additional Information
 Earth MOID = 1.06022 au 
 Jupiter MOID = 2.74063 au 
 T_jup = 3.526 
[ 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 16.3   n/a MPO436338  
diameter diameter 3.171 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79748 (1998 SG157)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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