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58176 (1990 SN16)
Classification: Main-belt Asteroid          SPK-ID: 2058176
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2168642323567741 4.7635e-08  
a 2.297987064439559 5.865e-09 au
q 1.799635863744077 1.0913e-07 au
i 4.109685322420242 4.3529e-06 deg
node 28.01181894399673 4.7226e-05 deg
peri 342.1986644391661 4.7737e-05 deg
M 168.8408475076158 6.6569e-06 deg
tp 2458403.746714045417
(2018-Oct-12.24671405)
2.3031e-05 TDB
period 1272.388679131451
3.48
4.8711e-06
1.334e-08
d
yr
n .2829324135811556 1.0832e-09 deg/d
Q 2.796338265135041 7.1369e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1534  
   data-arc span      10840 days (29.68 yr)  
   first obs. used      1990-09-16  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:52:02  

Additional Information
 Earth MOID = .799986 au 
 Jupiter MOID = 2.66624 au 
 T_jup = 3.558 
[ 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 15.1   n/a MPO459250  
diameter diameter 2.854 km 0.511 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.286   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58176 (1990 SN16)          Discovered 1990-Sep-17 by Holt, H. E. at Palomar
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 SN16 = 1995 AG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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