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23706 (1997 SY32)
Classification: Jupiter Trojan          SPK-ID: 2023706
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09162817786321224 6.6655e-08  
a 5.247824457745037 1.2753e-07 au
q 4.766975864935859 4.2366e-07 au
i 6.798520728460569 6.4915e-06 deg
node 21.80816832305491 4.9312e-05 deg
peri 8.278224590100145 5.9911e-05 deg
M 318.7317836985762 3.7796e-05 deg
tp 2459503.862169943474
(2021-Oct-16.36216994)
0.00046971 TDB
period 4391.039822416523
12.02
0.00016007
4.382e-07
d
yr
n .08198513667814587 2.9886e-09 deg/d
Q 5.728673050554215 1.3922e-07 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      15534 days (42.53 yr)  
   first obs. used      1977-02-11  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57385  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:36:35  

Additional Information
 Earth MOID = 3.77244 au 
 Jupiter MOID = .160884 au 
 T_jup = 2.978 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456371.5 (2013-Mar-20.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09056553918086897 6.6495e-08  
q 4.779929958903493 4.2223e-07 au
tp 2455112.287490700360
(2009-Oct-07.78749070)
0.00042252 TDB
node 21.89175302448001 4.9244e-05 deg
peri 8.3373646890552 6.0124e-05 deg
i 6.801255150007035 6.492e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      15534 days (42.53 yr)  
   first obs. used      1977-02-11  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57385  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:36:35  

Additional Information
 Jupiter MOID = .160884 au 
 T_jup = 2.978 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.421554089981685E-15 -2.725631164218214E-14 -3.2836826805694E-12 1.798647490862902E-15 -5.008576671656805E-13 -2.435857465242783E-15
q -2.725631164218214E-14 1.7828210210667E-13 2.431513375736248E-11 -6.349749864922996E-15 3.735172061896564E-12 1.894796522461419E-14
tp -3.2836826805694E-12 2.431513375736248E-11 1.785260626175412E-7 8.081909941270039E-14 1.453142326292704E-8 3.261798219564937E-13
node 1.798647490862902E-15 -6.349749864922996E-15 8.081909941270039E-14 2.424998166548458E-9 -2.407600985997659E-9 -3.964805358494771E-11
peri -5.008576671656805E-13 3.735172061896564E-12 1.453142326292704E-8 -2.407600985997659E-9 3.61492887571727E-9 3.968532879217351E-11
i -2.435857465242783E-15 1.894796522461419E-14 3.261798219564937E-13 -3.964805358494771E-11 3.968532879217351E-11 4.2146382864739E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.2   n/a MPO452502  
diameter diameter 14.114 km 0.648 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
rotation period rot_per 7.04 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D. (2016) http://www.planetarysciences.org/PHP/CS3_Lightcurves.php]
geometric albedo albedo 0.097   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

23706 (1997 SY32)          Discovered 1997-Sep-29 by Spacewatch at Kitt Peak
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 SY32 = 1977 CO2 = 1996 RL32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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