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181146 (2005 QY178)
Classification: Main-belt Asteroid          SPK-ID: 2181146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0913940681143094 3.5979e-08  
a 2.737935509376207 1.8712e-08 au
q 2.487704444939692 1.0238e-07 au
i 1.372917496149282 4.7296e-06 deg
node 323.6796473443538 0.00017711 deg
peri 290.0446107865676 0.00017918 deg
M 228.5504759933469 2.798e-05 deg
tp 2459804.712583029497
(2022-Aug-13.21258303)
0.00012988 TDB
period 1654.753271526566
4.53
1.6964e-05
4.644e-08
d
yr
n .2175550918644735 2.2303e-09 deg/d
Q 2.988166573812723 2.0422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      8912 days (24.40 yr)  
   first obs. used      1996-09-17  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62695  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:24  

Additional Information
 Earth MOID = 1.47185 au 
 Jupiter MOID = 2.04263 au 
 T_jup = 3.345 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457079.5 (2015-Feb-26.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0927166867460323 3.5761e-08  
q 2.482831217752393 1.0184e-07 au
tp 2456499.203240714752
(2013-Jul-25.70324071)
0.00012535 TDB
node 323.8374143331462 0.00017673 deg
peri 290.4619086721963 0.00017876 deg
i 1.375118406281006 4.7343e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      8912 days (24.40 yr)  
   first obs. used      1996-09-17  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62695  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:24  

Additional Information
 Jupiter MOID = 2.04263 au 
 T_jup = 3.345 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.278818876698414E-15 -3.592088395698211E-15 -7.861961887947275E-14 -2.714261842513944E-15 -3.751201609421264E-14 -9.668830925425432E-17
q -3.592088395698211E-15 1.037102603241948E-14 1.231973988373697E-13 5.03784174215575E-15 1.088821131502718E-13 3.800023283049868E-16
tp -7.861961887947275E-14 1.231973988373697E-13 1.571336126344891E-8 8.019592122522868E-12 3.387961383035486E-9 -7.075029125295148E-13
node -2.714261842513944E-15 5.03784174215575E-15 8.019592122522868E-12 3.123278134252525E-8 -3.122179777583172E-8 1.41723450116403E-10
peri -3.751201609421264E-14 1.088821131502718E-13 3.387961383035486E-9 -3.122179777583172E-8 3.195691295292685E-8 -1.418256426573667E-10
i -9.668830925425432E-17 3.800023283049868E-16 -7.075029125295148E-13 1.41723450116403E-10 -1.418256426573667E-10 2.241371355382446E-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 16.44   n/a MPCxxxxx  

181146 (2005 QY178)          Discovered 2005-Aug-31 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2005 QY178 = 1996 SJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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