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277202 (2005 QP78)
Classification: Main-belt Asteroid          SPK-ID: 2277202
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176505283548385 6.1734e-08  
a 2.404401971220481 1.2347e-08 au
q 2.121522808928976 1.4896e-07 au
i 6.168677453468385 6.0821e-06 deg
node 180.8559397018943 4.5428e-05 deg
peri 222.4935736447527 4.9227e-05 deg
M 303.3064986045867 2.0133e-05 deg
tp 2459214.956798813367
(2020-Dec-31.45679881)
7.6411e-05 TDB
period 1361.786548238456
3.73
1.049e-05
2.872e-08
d
yr
n .2643586107277086 2.0363e-09 deg/d
Q 2.687281133511986 1.38e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      5539 days (15.16 yr)  
   first obs. used      2005-08-25  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51665  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 21:20:05  

Additional Information
 Earth MOID = 1.13416 au 
 Jupiter MOID = 2.69478 au 
 T_jup = 3.506 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457727.5 (2016-Dec-05.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191349698916565 6.2069e-08  
q 2.118033241744866 1.5011e-07 au
tp 2457851.174802823153
(2017-Apr-07.67480282)
7.3856e-05 TDB
node 180.9689898479041 4.5399e-05 deg
peri 221.9765572759784 4.9048e-05 deg
i 6.170936869454137 6.0878e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      5539 days (15.16 yr)  
   first obs. used      2005-08-25  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51665  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 21:20:05  

Additional Information
 Jupiter MOID = 2.69478 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.85254772522168E-15 -9.292943803346683E-15 -1.572049871270025E-12 2.751836658920593E-15 -3.360777606382692E-13 9.236853436683743E-15
q -9.292943803346683E-15 2.253296808140836E-14 3.812847569055195E-12 -5.979914852508894E-15 8.116833046619328E-13 -2.187935730065301E-14
tp -1.572049871270025E-12 3.812847569055195E-12 5.454724796102564E-9 -2.087912187840332E-11 1.392669473150376E-9 -4.517318349659947E-12
node 2.751836658920593E-15 -5.979914852508894E-15 -2.087912187840332E-11 2.061025090061006E-9 -2.053786398215777E-9 1.049644297922642E-10
peri -3.360777606382692E-13 8.116833046619328E-13 1.392669473150376E-9 -2.053786398215777E-9 2.405723002139195E-9 -1.053695272168285E-10
i 9.236853436683743E-15 -2.187935730065301E-14 -4.517318349659947E-12 1.049644297922642E-10 -1.053695272168285E-10 3.706131932364805E-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 17.0   n/a MPO476187  

277202 (2005 QP78)          Discovered 2005-Aug-25 by NEAT at Palomar
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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