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15693 (1984 SN6)
Classification: Main-belt Asteroid          SPK-ID: 2015693
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08765098976620007 4.3608e-08  
a 2.562410465686976 8.743e-09 au
q 2.337812652182242 1.1305e-07 au
i 3.291162098602332 3.3996e-06 deg
node 61.7434488366983 7.26e-05 deg
peri 128.2404108350414 7.5523e-05 deg
M 62.18546090255234 2.1994e-05 deg
tp 2458741.703837124145
(2019-Sep-15.20383712)
9.121e-05 TDB
period 1498.205807002128
4.10
7.6679e-06
2.099e-08
d
yr
n .2402874146645787 1.2298e-09 deg/d
Q 2.787008279191709 9.5093e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2724  
   data-arc span      13155 days (36.02 yr)  
   first obs. used      1984-09-23  
   last obs. used      2020-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45731  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:32:00  

Additional Information
 Earth MOID = 1.3394 au 
 Jupiter MOID = 2.16931 au 
 T_jup = 3.426 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456481.5 (2013-Jul-08.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08875207634185531 4.3352e-08  
q 2.333505122104478 1.1269e-07 au
tp 2455746.567866708501
(2011-Jul-04.06786671)
8.7637e-05 TDB
node 61.802781968838 7.2531e-05 deg
peri 128.1190247711288 7.5411e-05 deg
i 3.293433972745511 3.4017e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2724  
   data-arc span      13155 days (36.02 yr)  
   first obs. used      1984-09-23  
   last obs. used      2020-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45731  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:32:00  

Additional Information
 Jupiter MOID = 2.16931 au 
 T_jup = 3.426 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.879398660437851E-15 -4.872962131801652E-15 -1.153135970775311E-12 2.119942218234822E-14 -2.303386873981931E-13 -1.480275158357117E-15
q -4.872962131801652E-15 1.269913388958134E-14 3.01479575356971E-12 -5.576321813530678E-14 6.105349165286868E-13 3.970641851559647E-15
tp -1.153135970775311E-12 3.01479575356971E-12 7.680232346920242E-9 -1.186376424247247E-11 1.828262923577323E-9 3.111948450106242E-12
node 2.119942218234822E-14 -5.576321813530678E-14 -1.186376424247247E-11 5.260789101839903E-9 -5.253838682158809E-9 -2.233701960867437E-11
peri -2.303386873981931E-13 6.105349165286868E-13 1.828262923577323E-9 -5.253838682158809E-9 5.6868374279934E-9 2.301189201970261E-11
i -1.480275158357117E-15 3.970641851559647E-15 3.111948450106242E-12 -2.233701960867437E-11 2.301189201970261E-11 1.157164829895579E-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 13.1   n/a MPO473978  
diameter diameter 7.712 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.316 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.187   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15693 (1984 SN6)          Discovered 1984-Sep-23 by Debehogne, H. at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1984 SN6 = 1995 GR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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