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227885 (2007 EY42)
Classification: Main-belt Asteroid          SPK-ID: 2227885
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07295799967505594 5.0915e-08  
a 2.903230216681066 2.7802e-08 au
q 2.691416347475836 1.4448e-07 au
i 2.770221002517309 5.717e-06 deg
node 163.9536104868055 0.00011571 deg
peri 93.98293971618908 0.00012279 deg
M 217.2527178295829 4.2723e-05 deg
tp 2459916.950165557884
(2022-Dec-03.45016556)
0.00021834 TDB
period 1806.843925006721
4.95
2.5954e-05
7.106e-08
d
yr
n .1992424442518802 2.862e-09 deg/d
Q 3.115044085886296 2.983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      9625 days (26.35 yr)  
   first obs. used      1994-10-08  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53268  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:32  

Additional Information
 Earth MOID = 1.67645 au 
 Jupiter MOID = 1.91433 au 
 T_jup = 3.280 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457377.5 (2015-Dec-21.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07525704348915473 5.0725e-08  
q 2.682679500449762 1.4421e-07 au
tp 2458112.130644944783
(2017-Dec-24.63064494)
0.00020367 TDB
node 163.9952652629039 0.00011564 deg
peri 94.45074016646575 0.00012238 deg
i 2.770300454560078 5.7242e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      9625 days (26.35 yr)  
   first obs. used      1994-10-08  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53268  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:32  

Additional Information
 Jupiter MOID = 1.91433 au 
 T_jup = 3.280 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.573030630349425E-15 -7.204358180063356E-15 2.29917797089296E-12 -1.979196661106309E-14 4.214614220664584E-13 1.947872327675433E-16
q -7.204358180063356E-15 2.079595969118152E-14 -5.170595200461411E-12 5.701493317921712E-14 -9.814482003981259E-13 -3.86428741629866E-16
tp 2.29917797089296E-12 -5.170595200461411E-12 4.148222271826743E-8 -9.667866474621346E-11 8.190563539677285E-9 -3.283431920611892E-12
node -1.979196661106309E-14 5.701493317921712E-14 -9.667866474621346E-11 1.337169092063919E-8 -1.337455397317066E-8 -8.954860758439179E-11
peri 4.214614220664584E-13 -9.814482003981259E-13 8.190563539677285E-9 -1.337455397317066E-8 1.49778314939976E-8 8.879672580865399E-11
i 1.947872327675433E-16 -3.86428741629866E-16 -3.283431920611892E-12 -8.954860758439179E-11 8.879672580865399E-11 3.2765904319503E-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 16.26   n/a MPCxxxxx  

227885 (2007 EY42)          Discovered 2007-Mar-09 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2007 EY42 = 2004 TZ219 = 2007 GW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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