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14423 (1991 SM2)
Classification: Main-belt Asteroid          SPK-ID: 2014423
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06587388308411901 3.0843e-08  
a 2.271991188842228 6.6834e-09 au
q 2.122326306900286 6.9329e-08 au
i 6.941616683595903 3.6371e-06 deg
node 15.67758611542474 2.9856e-05 deg
peri 58.46809143007624 4.5471e-05 deg
M 137.7374847800901 3.2708e-05 deg
tp 2458721.916150810933
(2019-Aug-26.41615081)
0.0001138 TDB
period 1250.859096077878
3.42
5.5194e-06
1.511e-08
d
yr
n .2878022002068781 1.2699e-09 deg/d
Q 2.421656070784169 7.1237e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      10498 days (28.74 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47573  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:40:01  

Additional Information
 Earth MOID = 1.14477 au 
 Jupiter MOID = 2.72098 au 
 T_jup = 3.599 
[ 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 14.58   n/a E2021B10  
diameter diameter 3.068 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.430   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14423 (1991 SM2)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 SM2 = 1993 FU10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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