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277152 (2005 MD20)
Classification: Main-belt Asteroid          SPK-ID: 2277152
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2046197816525075 6.0819e-08  
a 2.302478013578017 8.8859e-09 au
q 1.831345465179984 1.392e-07 au
i 6.02418716594389 6.0171e-06 deg
node 166.0979945674432 4.5175e-05 deg
peri 137.76987878 4.8005e-05 deg
M 90.60492038578434 1.2825e-05 deg
tp 2458679.325581200458
(2019-Jul-14.82558120)
4.5166e-05 TDB
period 1276.120438884862
3.49
7.3874e-06
2.023e-08
d
yr
n .2821050341569532 1.6331e-09 deg/d
Q 2.77361056197605 1.0704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      5265 days (14.41 yr)  
   first obs. used      2005-06-27  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:09:51  

Additional Information
 Earth MOID = .82178 au 
 Jupiter MOID = 2.48982 au 
 T_jup = 3.555 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457334.5 (2015-Nov-08.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2046385136882883 6.0839e-08  
q 1.831188097633241 1.3935e-07 au
tp 2457403.978411729990
(2016-Jan-16.47841173)
4.486e-05 TDB
node 166.1319500403513 4.516e-05 deg
peri 137.93376643606 4.7986e-05 deg
i 6.025103725212325 6.018e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      5265 days (14.41 yr)  
   first obs. used      2005-06-27  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:09:51  

Additional Information
 Jupiter MOID = 2.48982 au 
 T_jup = 3.555 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.701388980350247E-15 -8.467011374894996E-15 1.20162672113486E-12 -5.982428777623539E-14 5.363880355692729E-13 -9.876951678500466E-15
q -8.467011374894996E-15 1.941787750581111E-14 -2.780720323759877E-12 1.377642043829312E-13 -1.240542202713959E-12 2.272403228793578E-14
tp 1.20162672113486E-12 -2.780720323759877E-12 2.012430488846565E-9 -3.677695618493E-11 7.413939180995199E-10 -3.740668688417699E-12
node -5.982428777623539E-14 1.377642043829312E-13 -3.677695618493E-11 2.039397372753314E-9 -2.039838937755122E-9 -3.983548358970033E-11
peri 5.363880355692729E-13 -1.240542202713959E-12 7.413939180995199E-10 -2.039838937755122E-9 2.302702689764972E-9 3.829698868903454E-11
i -9.876951678500466E-15 2.272403228793578E-14 -3.740668688417699E-12 -3.983548358970033E-11 3.829698868903454E-11 3.621649443865244E-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 17.5   n/a MPO437261  

277152 (2005 MD20)          Discovered 2005-Jun-29 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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