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227928 (2007 GT1)
Classification: Main-belt Asteroid          SPK-ID: 2227928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776324729219772 4.2619e-08  
a 3.134449794555169 2.843e-08 au
q 2.577669726298551 1.3209e-07 au
i 2.453420952116141 6.9142e-06 deg
node 38.46819234419157 0.00011622 deg
peri 244.4205734238743 0.00011817 deg
M 98.41209149353078 2.2084e-05 deg
tp 2458646.402277851887
(2019-Jun-11.90227785)
0.00012124 TDB
period 2026.937716148766
5.55
2.7577e-05
7.55e-08
d
yr
n .1776078254066974 2.4164e-09 deg/d
Q 3.691229862811787 3.348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      10306 days (28.22 yr)  
   first obs. used      1992-09-29  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61625  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:42  

Additional Information
 Earth MOID = 1.56055 au 
 Jupiter MOID = 1.47298 au 
 T_jup = 3.186 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457457.5 (2016-Mar-10.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1785812611383035 4.2161e-08  
q 2.574006078899179 1.3055e-07 au
tp 2456623.473659257582
(2013-Nov-26.97365926)
0.00011426 TDB
node 38.50730200012003 0.00011601 deg
peri 245.0733535513016 0.00011796 deg
i 2.45697907182963 6.9215e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      10306 days (28.22 yr)  
   first obs. used      1992-09-29  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61625  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:42  

Additional Information
 Jupiter MOID = 1.47298 au 
 T_jup = 3.186 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.777567328532833E-15 -5.417703521042177E-15 1.134803249718306E-13 4.306738339644433E-16 -4.8735172631144E-14 -1.325385009586508E-16
q -5.417703521042177E-15 1.704258730246117E-14 1.028252030687174E-14 -3.635190350988716E-15 2.554487205119689E-13 6.768139831838145E-16
tp 1.134803249718306E-13 1.028252030687174E-14 1.305562670679014E-8 -3.060163211592974E-11 2.458104005674569E-9 -2.514168719791078E-12
node 4.306738339644433E-16 -3.635190350988716E-15 -3.060163211592974E-11 1.345765065565963E-8 -1.345050502481629E-8 -2.836049887458144E-10
peri -4.8735172631144E-14 2.554487205119689E-13 2.458104005674569E-9 -1.345050502481629E-8 1.391502061069777E-8 2.82901830582687E-10
i -1.325385009586508E-16 6.768139831838145E-16 -2.514168719791078E-12 -2.836049887458144E-10 2.82901830582687E-10 4.790670316099237E-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 15.89   n/a E2021B55  
diameter diameter 4.955 km 0.568 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227928 (2007 GT1)          Discovered 2007-Apr-06 by Ory, M. at Vicques
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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