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277283 (2005 SZ78)
Classification: Main-belt Asteroid          SPK-ID: 2277283
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766605481396288 3.784e-08  
a 2.42566000006518 8.6984e-09 au
q 1.997141574853293 9.222e-08 au
i 3.164983433188845 5.0344e-06 deg
node 44.21621344700517 9.4167e-05 deg
peri 24.60708859874044 9.6803e-05 deg
M 273.4482964114803 2.1818e-05 deg
tp 2459332.254205155598
(2021-Apr-27.75420516)
8.4406e-05 TDB
period 1379.886344280538
3.78
7.4224e-06
2.032e-08
d
yr
n .2608910520001567 1.4033e-09 deg/d
Q 2.854178425277067 1.0235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      6453 days (17.67 yr)  
   first obs. used      2003-03-07  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45073  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:58:12  

Additional Information
 Earth MOID = 1.01176 au 
 Jupiter MOID = 2.43894 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457216.5 (2015-Jul-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1780061129902916 3.7763e-08  
q 1.99308494412787 9.2142e-08 au
tp 2456570.326770809134
(2013-Oct-04.82677081)
7.6805e-05 TDB
node 44.31796625483337 9.3856e-05 deg
peri 23.96443447580596 9.6449e-05 deg
i 3.171756077645513 5.0442e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      6453 days (17.67 yr)  
   first obs. used      2003-03-07  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45073  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:58:12  

Additional Information
 Jupiter MOID = 2.43894 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.426028555126074E-15 -3.468864152321981E-15 1.306660403263206E-13 6.580809604490273E-15 1.101387739630492E-13 -9.907999561728562E-16
q -3.468864152321981E-15 8.490236257011396E-15 -1.203484587733898E-13 -1.317561602034378E-14 -2.052601376799137E-13 2.635360405569738E-15
tp 1.306660403263206E-13 -1.203484587733898E-13 5.898944050206013E-9 8.641218190685924E-11 1.729193686172239E-9 1.978658819374975E-12
node 6.580809604490273E-15 -1.317561602034378E-14 8.641218190685924E-11 8.808973963700879E-9 -8.76842803799136E-9 -2.087209763253754E-10
peri 1.101387739630492E-13 -2.052601376799137E-13 1.729193686172239E-9 -8.76842803799136E-9 9.302404725393225E-9 2.089695545070565E-10
i -9.907999561728562E-16 2.635360405569738E-15 1.978658819374975E-12 -2.087209763253754E-10 2.089695545070565E-10 2.544366502882205E-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 17.8   n/a MPO437262  

277283 (2005 SZ78)          Discovered 2005-Sep-24 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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