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192612 (1999 GT39)
Classification: Main-belt Asteroid          SPK-ID: 2192612
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960007092467863 4.9597e-08  
a 2.349212842172057 1.3569e-08 au
q 1.888765458934675 1.1505e-07 au
i 11.61730551152184 4.7547e-06 deg
node 43.96983604690959 2.5208e-05 deg
peri 141.7964220577582 2.7899e-05 deg
M 13.35817099464404 1.0896e-05 deg
tp 2459151.699252535949
(2020-Oct-29.19925254)
3.9699e-05 TDB
period 1315.170250036643
3.60
1.1395e-05
3.12e-08
d
yr
n .2737288195121277 2.3716e-09 deg/d
Q 2.809660225409439 1.6229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      543  
   data-arc span      7571 days (20.73 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-01-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52254  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:52  

Additional Information
 Earth MOID = .901422 au 
 Jupiter MOID = 2.17056 au 
 T_jup = 3.506 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457175.5 (2015-Jun-02.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1963797969589408 4.9627e-08  
q 1.888068943588312 1.1517e-07 au
tp 2456521.451263535377
(2013-Aug-16.95126354)
4.0463e-05 TDB
node 43.98206018366693 2.5213e-05 deg
peri 141.8691432435268 2.7887e-05 deg
i 11.61681613407546 4.7548e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      543  
   data-arc span      7571 days (20.73 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-01-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52254  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:52  

Additional Information
 Jupiter MOID = 2.17056 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.4628562747538E-15 -5.690766238402635E-15 -3.16369985601199E-13 -5.922415256710337E-14 -2.331183981694983E-14 -7.051578607397933E-15
q -5.690766238402635E-15 1.326396730494804E-14 6.015401923091492E-13 1.357912509390425E-13 3.420412208514734E-14 1.637884374938546E-14
tp -3.16369985601199E-13 6.015401923091492E-13 1.637232578007516E-9 6.533396304215785E-12 4.988845890527802E-10 -3.153753509974068E-13
node -5.922415256710337E-14 1.357912509390425E-13 6.533396304215785E-12 6.356930855008908E-10 -6.207883820351696E-10 -3.057534011984302E-11
peri -2.331183981694983E-14 3.420412208514734E-14 4.988845890527802E-10 -6.207883820351696E-10 7.776623799198844E-10 2.997009459928221E-11
i -7.051578607397933E-15 1.637884374938546E-14 -3.153753509974068E-13 -3.057534011984302E-11 2.997009459928221E-11 2.260817028507568E-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 16.0   n/a MPO527440  
diameter diameter 1.637 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.346   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192612 (1999 GT39)          Discovered 1999-Apr-12 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1999 GT39 = 2001 XE12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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