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48470 (1991 TC2)
Classification: Inner Main-belt Asteroid          SPK-ID: 2048470
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196681887212423 3.7011e-08  
a 1.921388980467162 6.8204e-09 au
q 1.691459841345703 7.1002e-08 au
i 24.96780148950134 7.1833e-06 deg
node 26.81582609928376 9.8744e-06 deg
peri 55.432380205135 3.8265e-05 deg
M 210.5032521245782 3.2834e-05 deg
tp 2459404.471395635195
(2021-Jul-08.97139564)
8.829e-05 TDB
period 972.7950908327404
2.66
5.1797e-06
1.418e-08
d
yr
n .3700676569942697 1.9705e-09 deg/d
Q 2.151318119588622 7.6366e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1134  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1990-02-28  
   last obs. used      2019-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44326  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:07:23  

Additional Information
 Earth MOID = .7579 au 
 Jupiter MOID = 3.13653 au 
 T_jup = 3.802 
[ 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 MPO474363  
rotation period rot_per 10.504 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:
[Warner, B.D. (2011) Minor Planet Bull. 38, 142-149.]
[Warner, Brian D. (2014) Minor Planet Bull. 41, 235-241.]
[Stephens, R.D. (2016) Minor Planet Bull. 43, 158-159.]

48470 (1991 TC2)          Discovered 1991-Oct-10 by Lawrence, K. J. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 TC2 = 1998 HG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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