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277225 (2005 QH165)
Classification: Main-belt Asteroid          SPK-ID: 2277225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1984099360299487 7.1792e-08  
a 2.22701458990387 1.1882e-08 au
q 1.78515276758328 1.5644e-07 au
i 5.50582595138646 4.6746e-06 deg
node 67.35083100097421 5.7927e-05 deg
peri 268.4257795027564 5.9458e-05 deg
M 168.9783917883167 1.6151e-05 deg
tp 2458430.714107804452
(2018-Nov-08.21410780)
5.1564e-05 TDB
period 1213.90030417238
3.32
9.7146e-06
2.66e-08
d
yr
n .2965647168574052 2.3734e-09 deg/d
Q 2.668876412224459 1.4239e-08 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      6831 days (18.70 yr)  
   first obs. used      2001-05-15  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:10:45  

Additional Information
 Earth MOID = .786065 au 
 Jupiter MOID = 2.71814 au 
 T_jup = 3.613 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457228.5 (2015-Jul-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1993021686772752 7.1999e-08  
q 1.782993634309598 1.5704e-07 au
tp 2457216.465867259181
(2015-Jul-12.96586726)
4.605e-05 TDB
node 67.38508581107712 5.7972e-05 deg
peri 268.3142968786528 5.9486e-05 deg
i 5.504724287602339 4.6736e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      6831 days (18.70 yr)  
   first obs. used      2001-05-15  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:10:45  

Additional Information
 Jupiter MOID = 2.71814 au 
 T_jup = 3.613 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.183839391576095E-15 -1.128917687223572E-14 2.021703102825453E-12 -1.239046227675375E-13 5.361996487939022E-13 -9.463835975013115E-15
q -1.128917687223572E-14 2.466168376654191E-14 -4.299336667102314E-12 2.697332613819562E-13 -1.138362664666324E-12 2.070476482757764E-14
tp 2.021703102825453E-12 -4.299336667102314E-12 2.120616334698613E-9 -4.772583142462954E-11 6.469164728343179E-10 -6.376220309448134E-12
node -1.239046227675375E-13 2.697332613819562E-13 -4.772583142462954E-11 3.360720280718412E-9 -3.35519777668045E-9 -1.059597576940665E-10
peri 5.361996487939022E-13 -1.138362664666324E-12 6.469164728343179E-10 -3.35519777668045E-9 3.538543320439844E-9 1.038519809040343E-10
i -9.463835975013115E-15 2.070476482757764E-14 -6.376220309448134E-12 -1.059597576940665E-10 1.038519809040343E-10 2.184273376070684E-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 17.1   n/a MPO455057  

277225 (2005 QH165)          Discovered 2005-Aug-31 by NEAT at Palomar
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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