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192419 (1997 SM18)
Classification: Main-belt Asteroid          SPK-ID: 2192419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2094364911547188 3.7901e-08  
a 2.355196499037825 8.6082e-09 au
q 1.861932408299464 9.0961e-08 au
i 10.5207278897198 4.3184e-06 deg
node 351.9317148301816 2.3552e-05 deg
peri 83.23620103063061 2.7066e-05 deg
M 93.07494696196544 1.0428e-05 deg
tp 2458859.173942730352
(2020-Jan-10.67394273)
3.826e-05 TDB
period 1320.19823408856
3.61
7.238e-06
1.982e-08
d
yr
n .272686321420917 1.495e-09 deg/d
Q 2.848460589776185 1.0411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      734  
   data-arc span      8543 days (23.39 yr)  
   first obs. used      1997-09-04  
   last obs. used      2021-01-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45094  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:01  

Additional Information
 Earth MOID = .910211 au 
 Jupiter MOID = 2.50707 au 
 T_jup = 3.503 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.34   n/a E2021B55  
diameter diameter 3.933 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192419 (1997 SM18)          Discovered 1997-Sep-28 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1997 SM18 = 2001 UP169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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