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15895 (1997 JJ15)
Classification: Main-belt Asteroid          SPK-ID: 2015895
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1364661312306041 2.8746e-08  
a 2.27823343999724 6.4269e-09 au
q 1.967331736400626 6.8012e-08 au
i 5.486466748159119 3.7626e-06 deg
node 211.3978583616603 3.0148e-05 deg
peri 84.98981111816323 3.3543e-05 deg
M 314.6002538886341 1.3751e-05 deg
tp 2459554.896902110477
(2021-Dec-06.39690211)
4.7941e-05 TDB
period 1256.017701506396
3.44
5.3148e-06
1.455e-08
d
yr
n .2866201643243057 1.2128e-09 deg/d
Q 2.589135143593854 7.3039e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2294  
   data-arc span      10869 days (29.76 yr)  
   first obs. used      1991-11-05  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4867  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:32:52  

Additional Information
 Earth MOID = .960439 au 
 Jupiter MOID = 2.59003 au 
 T_jup = 3.589 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457380.5 (2015-Dec-24.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369730558829194 2.8724e-08  
q 1.966290688883812 6.801e-08 au
tp 2457041.901539696540
(2015-Jan-19.40153970)
4.9357e-05 TDB
node 211.4249128078197 3.0158e-05 deg
peri 84.86938705410043 3.3534e-05 deg
i 5.485126140125721 3.7628e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2294  
   data-arc span      10869 days (29.76 yr)  
   first obs. used      1991-11-05  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4867  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:32:52  

Additional Information
 Jupiter MOID = 2.59003 au 
 T_jup = 3.589 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.250770392750146E-16 -1.94816855365878E-15 3.075685372810847E-13 1.695951441469524E-15 1.054047621966055E-13 -1.089898595351432E-15
q -1.94816855365878E-15 4.625302483797743E-15 -7.718993585369724E-13 -4.231910566782256E-15 -2.596724173472318E-13 2.71915233864506E-15
tp 3.075685372810847E-13 -7.718993585369724E-13 2.436133366437739E-9 1.675634025583547E-12 7.283568872351082E-10 -8.810863934301395E-13
node 1.695951441469524E-15 -4.231910566782256E-15 1.675634025583547E-12 9.094875279237391E-10 -9.046224672832578E-10 -1.639375220931467E-11
peri 1.054047621966055E-13 -2.596724173472318E-13 7.283568872351082E-10 -9.046224672832578E-10 1.12455050334542E-9 1.607055838589694E-11
i -1.089898595351432E-15 2.71915233864506E-15 -8.810863934301395E-13 -1.639375220931467E-11 1.607055838589694E-11 1.415846502756417E-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 14.56   n/a MPO636303  
diameter diameter 2.762 km 0.638 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.441   0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15895 (1997 JJ15)          Discovered 1997-May-03 by Elst, E. W. at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 JJ15 = 1998 WG15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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