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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182257035346111 6.3e-08  
a 2.405396526245561 1.9472e-08 au
q 2.121016829650469 1.5042e-07 au
i 6.168155384325525 6.1478e-06 deg
node 180.9481135394507 5.5173e-05 deg
peri 222.0173907924541 6.3757e-05 deg
M 198.0839554721199 3.8203e-05 deg
tp 2459213.366426845290
(2020-Dec-29.86642685)
0.00014993 TDB
period 1362.631568153916
3.73
1.6546e-05
4.53e-08
d
yr
n .2641946718493581 3.2081e-09 deg/d
Q 2.689776222840651 2.1774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      5061 days (13.86 yr)  
   first obs. used      2005-08-25  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:46:37  

Additional Information
 Earth MOID = 1.13288 au 
 Jupiter MOID = 2.69488 au 
 T_jup = 3.506 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457450.5 (2016-Mar-03.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191545077736513 6.3088e-08  
q 2.117654043049356 1.5078e-07 au
tp 2457851.389100323088
(2017-Apr-07.88910032)
0.00013732 TDB
node 180.9702987723818 5.5142e-05 deg
peri 222.0542636890041 6.361e-05 deg
i 6.170827762123471 6.151e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      5061 days (13.86 yr)  
   first obs. used      2005-08-25  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:46:37  

Additional Information
 Jupiter MOID = 2.69488 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.980118510353543E-15 -9.451753399114848E-15 -3.029387495774384E-13 -1.915849691541196E-14 -3.842119816620778E-14 9.554656197435601E-15
q -9.451753399114848E-15 2.273458624968432E-14 2.292204156199765E-12 3.85669101758033E-14 4.381605804243879E-13 -2.235268995999291E-14
tp -3.029387495774384E-13 2.292204156199765E-12 1.885680487007517E-8 -9.67598826133155E-11 4.394793361773421E-9 -2.326972728075305E-12
node -1.915849691541196E-14 3.85669101758033E-14 -9.67598826133155E-11 3.040593765224467E-9 -3.044303768452558E-9 1.254772323648693E-10
peri -3.842119816620778E-14 4.381605804243879E-13 4.394793361773421E-9 -3.044303768452558E-9 4.046267153323695E-9 -1.25295272045838E-10
i 9.554656197435601E-15 -2.235268995999291E-14 -2.326972728075305E-12 1.254772323648693E-10 -1.25295272045838E-10 3.78350538975972E-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

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