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JPL Small-Body Database Browser
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226268 (2003 AN55)
Classification: Main-belt Asteroid          SPK-ID: 2226268
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129972774603442 6.0552e-08  
a 2.362003593526835 1.2489e-08 au
q 1.85890325875407 1.4465e-07 au
i 5.83167072819407 5.6768e-06 deg
node 98.8235263630143 7.2392e-05 deg
peri 288.6881272284579 7.3836e-05 deg
M 244.6385817284724 1.4432e-05 deg
tp 2459025.390815880859
(2020-Jun-24.89081588)
5.4419e-05 TDB
period 1325.925911877085
3.63
1.0516e-05
2.879e-08
d
yr
n .2715083827650337 2.1534e-09 deg/d
Q 2.865103928299601 1.5149e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      9126 days (24.99 yr)  
   first obs. used      1993-04-17  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55484  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:45:32  

Additional Information
 Earth MOID = .873015 au 
 Jupiter MOID = 2.59463 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456632.5 (2013-Dec-06.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2142165156364872 6.0645e-08  
q 1.855212974974386 1.4509e-07 au
tp 2456376.468717793845
(2013-Mar-24.96871779)
4.9265e-05 TDB
node 98.87545005967459 7.2476e-05 deg
peri 288.8288783517049 7.3879e-05 deg
i 5.830111867241965 5.674e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      9126 days (24.99 yr)  
   first obs. used      1993-04-17  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55484  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:45:32  

Additional Information
 Jupiter MOID = 2.59463 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.677823434182943E-15 -8.779192164963033E-15 -9.180387331691029E-13 -1.714792221739347E-14 -2.865621798510731E-13 -9.742363488513092E-15
q -8.779192164963033E-15 2.105094513644453E-14 2.165993000180239E-12 4.263860212756697E-14 6.744888498017378E-13 2.323560811448583E-14
tp -9.180387331691029E-13 2.165993000180239E-12 2.427026055677384E-9 -4.114148046648832E-12 7.626886186705942E-10 2.98815604251388E-12
node -1.714792221739347E-14 4.263860212756697E-14 -4.114148046648832E-12 5.252765376825782E-9 -5.226674097885858E-9 1.00050282759568E-10
peri -2.865621798510731E-13 6.744888498017378E-13 7.626886186705942E-10 -5.226674097885858E-9 5.458043935132545E-9 -9.840405789829652E-11
i -9.742363488513092E-15 2.323560811448583E-14 2.98815604251388E-12 1.00050282759568E-10 -9.840405789829652E-11 3.219448933281423E-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 16.4   n/a MPO385978  
diameter diameter 2.714 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 31.168 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Vokrouhlicky, D.; Polishook, D.; Scheeres, D.J.; et al. (2010) Nature 466, 1085-1088. Lightcurve plots as supplemental data, http://www.Nature.com/nature]
geometric albedo albedo 0.066   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226268 (2003 AN55)          Discovered 2003-Jan-05 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2003 AN55 = 1998 VQ50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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