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27972 (1997 TA18)
Classification: Main-belt Asteroid          SPK-ID: 2027972
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1797088551038555 4.6167e-08  
a 2.638521999704232 9.2749e-09 au
q 2.164356231971049 1.2047e-07 au
i 11.47193578441481 5.0628e-06 deg
node 187.3553971821197 1.9705e-05 deg
peri 226.0705838479118 2.2677e-05 deg
M 28.999808234541 1.0327e-05 deg
tp 2458474.395050772501
(2018-Dec-21.89505077)
4.4755e-05 TDB
period 1565.451100736157
4.29
8.2542e-06
2.26e-08
d
yr
n .2299656628244148 1.2126e-09 deg/d
Q 3.112687767437415 1.0942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1340  
   data-arc span      9676 days (26.49 yr)  
   first obs. used      1992-09-30  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49905  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:29  

Additional Information
 Earth MOID = 1.19028 au 
 Jupiter MOID = 2.33912 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO324567  
diameter diameter 5.780 km 1.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.101   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

27972 (1997 TA18)          Discovered 1997-Oct-08 by Sugie, A. at Dynic
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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