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27816 (1993 TH2)
Classification: Main-belt Asteroid          SPK-ID: 2027816
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028571033464598 4.1705e-08  
a 2.610448806302175 1.1452e-08 au
q 2.080900723021492 1.116e-07 au
i 3.199525855750148 3.1815e-06 deg
node 81.83544560704594 8.0988e-05 deg
peri 297.646189525251 8.147e-05 deg
M 26.39630654375517 8.4234e-06 deg
tp 2458487.543335315161
(2019-Jan-04.04333532)
3.584e-05 TDB
period 1540.53368107147
4.22
1.0137e-05
2.775e-08
d
yr
n .233685251042102 1.5377e-09 deg/d
Q 3.139996889582858 1.3775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1487  
   data-arc span      9549 days (26.14 yr)  
   first obs. used      1993-10-15  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55722  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:41:55  

Additional Information
 Earth MOID = 1.08495 au 
 Jupiter MOID = 2.31933 au 
 T_jup = 3.378 
[ 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 MPO378814  
diameter diameter 3.896 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.222   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

27816 (1993 TH2)          Discovered 1993-Oct-15 by Endate, K., Watanabe, K. at Kitami
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 TH2 = 1999 CB31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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