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JPL Small-Body Database Browser
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487474 (2014 SG172)
Classification: Main-belt Asteroid          SPK-ID: 2487474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333890749986022 7.5855e-08  
a 3.066688856277769 7.9517e-08 au
q 2.657626066430356 2.5347e-07 au
i 1.548188147125389 8.5905e-06 deg
node 141.8980536373414 0.00030572 deg
peri 131.9269270523574 0.00030754 deg
M 19.19262908082008 3.8385e-05 deg
tp 2458495.923291418646
(2019-Jan-12.42329142)
0.00020681 TDB
period 1961.566335219291
5.37
7.6293e-05
2.089e-07
d
yr
n .183526803828306 7.1381e-09 deg/d
Q 3.475751646125182 9.0124e-08 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      4052 days (11.09 yr)  
   first obs. used      2007-03-09  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6201  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:10:44  

Additional Information
 Earth MOID = 1.64112 au 
 Jupiter MOID = 1.63028 au 
 T_jup = 3.218 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457108.5 (2015-Mar-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1341325991961936 7.542e-08  
q 2.654718625339658 2.5158e-07 au
tp 2456539.920371448217
(2013-Sep-04.42037145)
0.00017686 TDB
node 141.9404164702207 0.00030572 deg
peri 132.8786701338994 0.00030755 deg
i 1.548095620714097 8.5939e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      4052 days (11.09 yr)  
   first obs. used      2007-03-09  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6201  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:10:44  

Additional Information
 Jupiter MOID = 1.63028 au 
 T_jup = 3.218 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.688214574999638E-15 -1.829099218669539E-14 -1.020078759514127E-12 -1.96689232172106E-14 -6.409797699213203E-14 -2.378089683853237E-15
q -1.829099218669539E-14 6.329278617365023E-14 5.883589647356767E-12 7.387733028363685E-14 9.237602249182638E-13 8.90793960196443E-15
tp -1.020078759514127E-12 5.883589647356767E-12 3.127790018608695E-8 7.782079462844886E-11 5.972195410122157E-9 3.286818342060068E-12
node -1.96689232172106E-14 7.387733028363685E-14 7.782079462844886E-11 9.346284241029116E-8 -9.341407876280663E-8 1.567290610713639E-10
peri -6.409797699213203E-14 9.237602249182638E-13 5.972195410122157E-9 -9.341407876280663E-8 9.458534472888589E-8 -1.560319947104422E-10
i -2.378089683853237E-15 8.90793960196443E-15 3.286818342060068E-12 1.567290610713639E-10 -1.560319947104422E-10 7.385478101151635E-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 16.9   n/a MPO440945  

487474 (2014 SG172)          Discovered 2012-Feb-16 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-03-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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