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227275 (2005 SG145)
Classification: Main-belt Asteroid          SPK-ID: 2227275
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07850845165700733 5.5861e-08  
a 2.348348417425083 1.264e-08 au
q 2.163983219221857 1.2949e-07 au
i 3.958721820244309 5.2295e-06 deg
node 52.40726489067542 7.2881e-05 deg
peri 150.7333602490728 8.086e-05 deg
M 246.9180425423641 3.7851e-05 deg
tp 2459613.388742733343
(2022-Feb-02.88874273)
0.00013857 TDB
period 1314.444414704164
3.60
1.0612e-05
2.905e-08
d
yr
n .2738799723843961 2.2112e-09 deg/d
Q 2.53271361562831 1.3632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      385  
   data-arc span      7610 days (20.84 yr)  
   first obs. used      2000-03-05  
   last obs. used      2021-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50994  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:08  

Additional Information
 Earth MOID = 1.15993 au 
 Jupiter MOID = 2.42337 au 
 T_jup = 3.552 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO437077  
diameter diameter 2.083 km 0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227275 (2005 SG145)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2005 SG145 = 2004 LH4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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