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227935 (2007 GY20)
Classification: Main-belt Asteroid          SPK-ID: 2227935
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0628302046148396 6.6162e-08  
a 2.870365956817177 2.6777e-08 au
q 2.690020276430884 1.9273e-07 au
i 1.68935755789262 7.5943e-06 deg
node 185.6028103444133 0.00018222 deg
peri 135.8711804989521 0.00018891 deg
M 198.3595030849384 5.1858e-05 deg
tp 2459998.039145800602
(2023-Feb-22.53914580)
0.00025844 TDB
period 1776.250988878662
4.86
2.4855e-05
6.805e-08
d
yr
n .2026740602842766 2.836e-09 deg/d
Q 3.05071163720347 2.8459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6936 days (18.99 yr)  
   first obs. used      2002-04-19  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60735  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:51:04  

Additional Information
 Earth MOID = 1.6756 au 
 Jupiter MOID = 2.14059 au 
 T_jup = 3.295 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457039.5 (2015-Jan-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06389980306615584 6.5899e-08  
q 2.685756980071639 1.9186e-07 au
tp 2456431.188642507782
(2013-May-18.68864251)
0.00024657 TDB
node 185.7229628219981 0.00018312 deg
peri 132.983114334688 0.0001896 deg
i 1.683112799555298 7.5906e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      6936 days (18.99 yr)  
   first obs. used      2002-04-19  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60735  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:51:04  

Additional Information
 Jupiter MOID = 2.14059 au 
 T_jup = 3.295 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.342730125760395E-15 -1.253650032474056E-14 3.970355456345785E-12 1.172575962448819E-14 8.995186953967078E-13 8.531511818806123E-16
q -1.253650032474056E-14 3.680966418629227E-14 -1.089553552200316E-11 -3.247567823805292E-14 -2.449488733763317E-12 -2.114723897536674E-15
tp 3.970355456345785E-12 -1.089553552200316E-11 6.079751136240923E-8 -3.169212145921668E-11 1.212868698729971E-8 5.068910386068452E-12
node 1.172575962448819E-14 -3.247567823805292E-14 -3.169212145921668E-11 3.353397154695007E-8 -3.352492727099228E-8 -3.057428017332159E-10
peri 8.995186953967078E-13 -2.449488733763317E-12 1.212868698729971E-8 -3.352492727099228E-8 3.59475597537473E-8 3.066349277631983E-10
i 8.531511818806123E-16 -2.114723897536674E-15 5.068910386068452E-12 -3.057428017332159E-10 3.066349277631983E-10 5.761660742735853E-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 16.38   n/a MPCxxxxx  

227935 (2007 GY20)          Discovered 2007-Apr-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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