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JPL Small-Body Database Browser
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18226 (1182 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2018226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1619337666350197 4.5242e-08  
a 2.66908903287508 1.2008e-08 au
q 2.236873392297397 1.17e-07 au
i 12.95540416415682 4.6581e-06 deg
node 188.295403074676 1.72e-05 deg
peri 208.4807149052129 2.0571e-05 deg
M 237.7229521918944 1.2636e-05 deg
tp 2459541.485297226155
(2021-Nov-22.98529723)
5.7404e-05 TDB
period 1592.733145692659
4.36
1.0748e-05
2.943e-08
d
yr
n .226026563818034 1.5253e-09 deg/d
Q 3.101304673452765 1.3953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      25008 days (68.47 yr)  
   first obs. used      1951-08-10  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:21:53  

Additional Information
 Earth MOID = 1.25063 au 
 Jupiter MOID = 2.36473 au 
 T_jup = 3.327 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456662.5 (2014-Jan-05.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627099690871922 4.5222e-08  
q 2.234720577805354 1.1693e-07 au
tp 2456361.478681972450
(2013-Mar-09.97868197)
5.1838e-05 TDB
node 188.3638163224444 1.7203e-05 deg
peri 209.1455136800516 2.0537e-05 deg
i 12.95494108975413 4.6587e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      25008 days (68.47 yr)  
   first obs. used      1951-08-10  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:21:53  

Additional Information
 Jupiter MOID = 2.36473 au 
 T_jup = 3.327 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.045002647566199E-15 -5.270930467031258E-15 6.095413552642291E-14 -9.898156914248208E-15 -2.811649107623505E-15 -5.537456597951232E-15
q -5.270930467031258E-15 1.367334980948255E-14 -1.549925702264654E-13 2.499050797050647E-14 1.080095772849372E-14 1.446529524769115E-14
tp 6.095413552642291E-14 -1.549925702264654E-13 2.687157162477705E-9 1.708964369109604E-12 5.970884280730603E-10 -4.271055533797708E-12
node -9.898156914248208E-15 2.499050797050647E-14 1.708964369109604E-12 2.95926468357063E-10 -2.873962007029814E-10 1.485510491605839E-11
peri -2.811649107623505E-15 1.080095772849372E-14 5.970884280730603E-10 -2.873962007029814E-10 4.217751568684843E-10 -1.530629417139617E-11
i -5.537456597951232E-15 1.446529524769115E-14 -4.271055533797708E-12 1.485510491605839E-11 -1.530629417139617E-11 2.170385318377798E-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 13.1   n/a MPO474007  
diameter diameter 5.627 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.386   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18226 (1182 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1182 T-1 = 1986 TY14 = 1998 KB53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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