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469916 (2005 YL91)
Classification: Main-belt Asteroid          SPK-ID: 2469916
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205194597923144 8.1484e-08  
a 2.571301381299048 2.226e-08 au
q 2.261409527861655 2.1479e-07 au
i 3.142961294385819 7.2171e-06 deg
node 260.6516214941122 0.00011828 deg
peri 174.5170687629443 0.00012227 deg
M 211.3856692405494 3.0102e-05 deg
tp 2459622.207477617512
(2022-Feb-11.70747762)
0.00012984 TDB
period 1506.010159306737
4.12
1.9556e-05
5.354e-08
d
yr
n .2390422121492987 3.1041e-09 deg/d
Q 2.881193234736441 2.4943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      4894 days (13.40 yr)  
   first obs. used      2005-11-30  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 14:00:10  

Additional Information
 Earth MOID = 1.27654 au 
 Jupiter MOID = 2.35051 au 
 T_jup = 3.417 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457632.5 (2016-Sep-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222717592505213 8.1774e-08  
q 2.254517196958189 2.158e-07 au
tp 2458116.508248306968
(2017-Dec-29.00824831)
0.00011828 TDB
node 260.6702327022504 0.00011827 deg
peri 174.3506004122028 0.00012212 deg
i 3.14417266020803 7.224e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      4894 days (13.40 yr)  
   first obs. used      2005-11-30  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 14:00:10  

Additional Information
 Jupiter MOID = 2.35051 au 
 T_jup = 3.417 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.686938039511929E-15 -1.757874821626349E-14 -4.798105091657705E-12 -3.217579718554452E-14 -1.384936371301478E-12 6.659490586428678E-15
q -1.757874821626349E-14 4.657083619942577E-14 1.322142438219162E-11 8.079515899943191E-14 3.767799306434083E-12 -1.739625753325275E-14
tp -4.798105091657705E-12 1.322142438219162E-11 1.398923103750552E-8 6.802829464242143E-12 3.628307638173022E-9 -9.574613570758039E-12
node -3.217579718554452E-14 8.079515899943191E-14 6.802829464242143E-12 1.398771711337115E-8 -1.396333572923727E-8 -3.042091000114304E-10
peri -1.384936371301478E-12 3.767799306434083E-12 3.628307638173022E-9 -1.396333572923727E-8 1.491255072177988E-8 3.011436308785563E-10
i 6.659490586428678E-15 -1.739625753325275E-14 -9.574613570758039E-12 -3.042091000114304E-10 3.011436308785563E-10 5.218615237854652E-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 17.0   n/a MPO434692  

469916 (2005 YL91)          Discovered 2005-Nov-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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