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190312 (1997 TK27)
Classification: Main-belt Asteroid          SPK-ID: 2190312
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080959092956163 4.0073e-08  
a 2.412254143052533 1.4048e-08 au
q 2.151499338007151 9.956e-08 au
i 3.640643808541795 4.7894e-06 deg
node 145.521126044275 7.24e-05 deg
peri 280.9096057353454 7.5949e-05 deg
M 26.00186217546365 2.3902e-05 deg
tp 2459101.659491843126
(2020-Sep-09.15949184)
9.0594e-05 TDB
period 1368.462869942128
3.75
1.1954e-05
3.273e-08
d
yr
n .2630688840064943 2.2981e-09 deg/d
Q 2.673008948097914 1.5567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      8529 days (23.35 yr)  
   first obs. used      1997-10-03  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61134  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:07  

Additional Information
 Earth MOID = 1.16821 au 
 Jupiter MOID = 2.57252 au 
 T_jup = 3.508 
[ 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 16.7   n/a MPO440056  
diameter diameter 2.494 km 0.592 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.78 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.071   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190312 (1997 TK27)          Discovered 1997-Oct-03 by ODAS at Caussols
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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