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120261 (2004 GS27)
Classification: Main-belt Asteroid          SPK-ID: 2120261
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1673885265346376 6.8161e-08  
a 2.603258995486304 2.4725e-08 au
q 2.167503308043811 1.7714e-07 au
i 13.84796776678338 7.2772e-06 deg
node 111.6651203134573 2.6859e-05 deg
peri 206.5110084033134 3.4618e-05 deg
M 222.5677023754648 2.8116e-05 deg
tp 2459586.180547637063
(2022-Jan-06.68054764)
0.00012534 TDB
period 1534.173558862932
4.20
2.1857e-05
5.984e-08
d
yr
n .2346540245856001 3.3431e-09 deg/d
Q 3.039014682928797 2.8864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      7289 days (19.96 yr)  
   first obs. used      2000-06-04  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:58:24  

Additional Information
 Earth MOID = 1.16158 au 
 Jupiter MOID = 2.25489 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457072.5 (2015-Feb-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1678867035224092 6.8452e-08  
q 2.166127478431952 1.781e-07 au
tp 2456513.455964311520
(2013-Aug-08.95596431)
9.9764e-05 TDB
node 111.7883906236375 2.6793e-05 deg
peri 205.7174322609142 3.4478e-05 deg
i 13.86606290594932 7.2864e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      7289 days (19.96 yr)  
   first obs. used      2000-06-04  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:58:24  

Additional Information
 Jupiter MOID = 2.25489 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.685638646673762E-15 -1.210996435054312E-14 1.182987491405531E-12 -2.164800129032236E-14 2.306138853102021E-13 7.41085240272902E-15
q -1.210996435054312E-14 3.171991185636243E-14 -2.201277047307409E-12 5.184068208891675E-14 -3.895833229737129E-13 -1.750616852876913E-14
tp 1.182987491405531E-12 -2.201277047307409E-12 9.952812308891855E-9 -4.062174972606868E-11 2.206750150934368E-9 3.189442728767116E-12
node -2.164800129032236E-14 5.184068208891675E-14 -4.062174972606868E-11 7.178744205475964E-10 -7.050162722122329E-10 3.374990894247266E-11
peri 2.306138853102021E-13 -3.895833229737129E-13 2.206750150934368E-9 -7.050162722122329E-10 1.188761059566644E-9 -3.217401229791714E-11
i 7.41085240272902E-15 -1.750616852876913E-14 3.189442728767116E-12 3.374990894247266E-11 -3.217401229791714E-11 5.309205725823603E-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 15.7   n/a MPO453673  

120261 (2004 GS27)          Discovered 2004-Apr-15 by NEAT at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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