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312275 (2008 AN108)
Classification: Main-belt Asteroid          SPK-ID: 2312275
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1971997057536584 8.4812e-08  
a 2.59658889445456 1.7853e-08 au
q 2.084542328504904 2.1985e-07 au
i 6.342376184966915 4.554e-06 deg
node 287.2511211742787 6.6443e-05 deg
peri 108.6252576701389 6.7857e-05 deg
M 94.52997208927638 1.3516e-05 deg
tp 2458799.198993753253
(2019-Nov-11.69899375)
5.662e-05 TDB
period 1528.281020884989
4.18
1.5762e-05
4.315e-08
d
yr
n .2355587716397428 2.4294e-09 deg/d
Q 3.108635460404217 2.1374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      6819 days (18.67 yr)  
   first obs. used      2002-08-16  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:50:42  

Additional Information
 Earth MOID = 1.10108 au 
 Jupiter MOID = 2.3597 au 
 T_jup = 3.381 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458163.5 (2018-Feb-14.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1963753551877032 8.4999e-08  
q 2.088069632657466 2.1961e-07 au
tp 2458798.610240815016
(2019-Nov-11.11024082)
5.6996e-05 TDB
node 287.2899803838835 6.6528e-05 deg
peri 108.3216329578749 6.7947e-05 deg
i 6.335938256475231 4.5503e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      6819 days (18.67 yr)  
   first obs. used      2002-08-16  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:50:42  

Additional Information
 Jupiter MOID = 2.3597 au 
 T_jup = 3.381 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.224857608437603E-15 -1.862705784940504E-14 -2.402062159913214E-12 -2.093359456979267E-13 -7.431462885190557E-13 -8.464679081739133E-15
q -1.862705784940504E-14 4.823073206689581E-14 6.332575051869567E-12 5.434144334423216E-13 1.917404401145995E-12 2.22681671180647E-14
tp -2.402062159913214E-12 6.332575051869567E-12 3.248591884898286E-9 8.067478891174514E-11 8.62858667450886E-10 1.097862962979726E-12
node -2.093359456979267E-13 5.434144334423216E-13 8.067478891174514E-11 4.426005712667496E-9 -4.368354483114719E-9 3.081907513794298E-11
peri -7.431462885190557E-13 1.917404401145995E-12 8.62858667450886E-10 -4.368354483114719E-9 4.61677013460221E-9 -3.000786610514557E-11
i -8.464679081739133E-15 2.22681671180647E-14 1.097862962979726E-12 3.081907513794298E-11 -3.000786610514557E-11 2.070556047136535E-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 16.95   n/a MPCxxxxx  

312275 (2008 AN108)          Discovered 2008-Jan-15 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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