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27970 (1997 TR9)
Classification: Main-belt Asteroid          SPK-ID: 2027970
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06047103926653062 3.8303e-08  
a 2.665465370497089 1.1226e-08 au
q 2.504281909414182 1.0356e-07 au
i .8881504943341274 3.5698e-06 deg
node 252.2326979179308 0.00027436 deg
peri 78.84737254531962 0.00027629 deg
M 34.13631930481552 3.1866e-05 deg
tp 2458449.779548942585
(2018-Nov-27.27954894)
0.00014064 TDB
period 1589.490709181853
4.35
1.0042e-05
2.749e-08
d
yr
n .2264876402991372 1.4309e-09 deg/d
Q 2.826648831579996 1.1905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1183  
   data-arc span      9012 days (24.67 yr)  
   first obs. used      1995-03-27  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55789  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:09:47  

Additional Information
 Earth MOID = 1.49255 au 
 Jupiter MOID = 2.37512 au 
 T_jup = 3.381 
[ 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 14.9   n/a MPO449168  
diameter diameter 2.661 km 0.856 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.274   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27970 (1997 TR9)          Discovered 1997-Oct-02 by Spacewatch at Kitt Peak
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 TR9 = 2000 JG35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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