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58295 (1994 JJ9)
Classification: Main-belt Asteroid          SPK-ID: 2058295
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2249563568311437 3.914e-08  
a 2.710076642185718 1.4321e-08 au
q 2.10042767402644 1.0932e-07 au
i 8.241299934850613 5.3193e-06 deg
node 161.1560779078292 2.783e-05 deg
peri 67.33187845788188 3.0423e-05 deg
M 348.0353247574886 1.3306e-05 deg
tp 2459254.658820911774
(2021-Feb-09.15882091)
6.0483e-05 TDB
period 1629.561616429299
4.46
1.2916e-05
3.536e-08
d
yr
n .2209183110171883 1.7511e-09 deg/d
Q 3.319725610344996 1.7542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      9776 days (26.77 yr)  
   first obs. used      1994-05-14  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53434  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:29:24  

Additional Information
 Earth MOID = 1.10655 au 
 Jupiter MOID = 1.71925 au 
 T_jup = 3.312 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457006.5 (2014-Dec-15.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2262325082479008 3.8976e-08  
q 2.096207979781213 1.089e-07 au
tp 2457623.724038210567
(2016-Aug-23.22403821)
5.3484e-05 TDB
node 161.1986547101865 2.7844e-05 deg
peri 67.27749732267085 3.0424e-05 deg
i 8.240329722294563 5.3198e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      9776 days (26.77 yr)  
   first obs. used      1994-05-14  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53434  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:29:24  

Additional Information
 Jupiter MOID = 1.71925 au 
 T_jup = 3.312 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.519151763472935E-15 -4.224059421456267E-15 -6.071946973107277E-13 7.175307668381021E-17 -8.0534450362998E-14 -2.421247405457867E-15
q -4.224059421456267E-15 1.185890479348158E-14 1.89945507455674E-12 -3.299018747591321E-16 2.58506548948017E-13 7.071267207224352E-15
tp -6.071946973107277E-13 1.89945507455674E-12 2.860589984441717E-9 -5.559171066840599E-12 6.584861993335967E-10 1.896161104079338E-12
node 7.175307668381021E-17 -3.299018747591321E-16 -5.559171066840599E-12 7.75290722737613E-10 -7.680215728661864E-10 6.677028770223483E-13
peri -8.0534450362998E-14 2.58506548948017E-13 6.584861993335967E-10 -7.680215728661864E-10 9.256207912206453E-10 -3.65670638831071E-13
i -2.421247405457867E-15 7.071267207224352E-15 1.896161104079338E-12 6.677028770223483E-13 -3.65670638831071E-13 2.830025232872565E-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 15.14   n/a E2021B10  
diameter diameter 4.568 km 1.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58295 (1994 JJ9)          Discovered 1994-May-15 by de Saint-Aignan, C. P. at Palomar
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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