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15654 (1176 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2015654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009659108367873 3.608e-08  
a 3.18370089329811 1.9582e-08 au
q 2.862255632774373 1.1745e-07 au
i 6.095394068890479 4.1947e-06 deg
node 188.5409099964291 3.5621e-05 deg
peri 19.43618852748117 4.0635e-05 deg
M 256.4185994245779 2.0729e-05 deg
tp 2459797.502423415315
(2022-Aug-06.00242342)
0.00012147 TDB
period 2074.898304479098
5.68
1.9143e-05
5.241e-08
d
yr
n .1735024792409659 1.6008e-09 deg/d
Q 3.505146153821847 2.1559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      18259 days (49.99 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46797  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:05:44  

Additional Information
 Earth MOID = 1.85779 au 
 Jupiter MOID = 1.45348 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456996.5 (2014-Dec-05.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1032018508247057 3.5725e-08  
q 2.85176298872363 1.1634e-07 au
tp 2457730.424768802425
(2016-Dec-07.92476880)
0.00011417 TDB
node 188.6117646669496 3.5674e-05 deg
peri 20.76021278636252 4.0611e-05 deg
i 6.091505001433847 4.1951e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      18259 days (49.99 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46797  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:05:44  

Additional Information
 Jupiter MOID = 1.45348 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.276251528571204E-15 -4.10918215350619E-15 -6.359509382942254E-13 -3.433996901276512E-15 -8.963224897235858E-14 -3.387725273144363E-16
q -4.10918215350619E-15 1.353408358459221E-14 2.46522065306545E-12 1.232209174333891E-14 3.383375220213882E-13 1.481374405437115E-15
tp -6.359509382942254E-13 2.46522065306545E-12 1.303388368598851E-8 4.258441785961059E-12 2.228621149505939E-9 1.947646766788445E-12
node -3.433996901276512E-15 1.232209174333891E-14 4.258441785961059E-12 1.272605274738148E-9 -1.264707926246196E-9 -1.096273128345157E-11
peri -8.963224897235858E-14 3.383375220213882E-13 2.228621149505939E-9 -1.264707926246196E-9 1.649218218322894E-9 1.119328184980131E-11
i -3.387725273144363E-16 1.481374405437115E-15 1.947646766788445E-12 -1.096273128345157E-11 1.119328184980131E-11 1.759851389631785E-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 13.35   n/a E2021B10  
diameter diameter 12.565 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15654 (1176 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1176 T-1 = 1999 CO74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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