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214469 (2005 SG213)
Classification: Main-belt Asteroid          SPK-ID: 2214469
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1896149093160474 4.0532e-08  
a 3.125257998902541 3.0347e-08 au
q 2.532662486851384 1.4178e-07 au
i 16.29436114103251 8.5893e-06 deg
node 210.8342017589381 1.3887e-05 deg
peri 84.58127148625194 2.749e-05 deg
M 308.7189060653477 2.2624e-05 deg
tp 2459287.963044095423
(2021-Mar-14.46304410)
0.00012838 TDB
period 2018.028242654608
5.53
2.9393e-05
8.047e-08
d
yr
n .178391953289236 2.5983e-09 deg/d
Q 3.717853510953699 3.6101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      8071 days (22.10 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:48:09  

Additional Information
 Earth MOID = 1.58228 au 
 Jupiter MOID = 1.72092 au 
 T_jup = 3.126 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457577.5 (2016-Jul-08.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883809860848301 4.0527e-08  
q 2.538732305449877 1.4186e-07 au
tp 2457268.792077139583
(2015-Sep-03.29207714)
0.0001213 TDB
node 210.8454354403758 1.3882e-05 deg
peri 84.58261683392888 2.7632e-05 deg
i 16.29152027092081 8.5881e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      8071 days (22.10 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:48:09  

Additional Information
 Jupiter MOID = 1.72092 au 
 T_jup = 3.126 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.642397532161497E-15 -5.687771801477719E-15 -1.445867672822975E-12 1.950587074143566E-15 -2.970446635975124E-13 -1.431666815993965E-14
q -5.687771801477719E-15 2.012470239499589E-14 5.02719992637113E-12 -8.641361812485105E-15 1.052070092211189E-12 5.312156037770816E-14
tp -1.445867672822975E-12 5.02719992637113E-12 1.471393552414061E-8 -2.756720385980379E-11 2.90324066331221E-9 2.466319812243351E-11
node 1.950587074143566E-15 -8.641361812485105E-15 -2.756720385980379E-11 1.92704932377545E-10 -1.901481503962849E-10 1.405078838408206E-11
peri -2.970446635975124E-13 1.052070092211189E-12 2.90324066331221E-9 -1.901481503962849E-10 7.635288747212676E-10 -8.556601460770352E-12
i -1.431666815993965E-14 5.312156037770816E-14 2.466319812243351E-11 1.405078838408206E-11 -8.556601460770352E-12 7.37547962572311E-11

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 14.9   n/a MPO433402  
diameter diameter 5.537 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 15.19 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.063   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214469 (2005 SG213)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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