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7474 (1992 TC)
Classification: Amor [NEO]          SPK-ID: 2007474
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2921894237942398 1.0941e-07  
a 1.565797990250685 2.061e-08 AU
q 1.108288377701159 1.7607e-07 AU
i 7.08754412021827 8.8602e-06 deg
node 88.66425764246303 5.4967e-05 deg
peri 275.5462917951203 8.4487e-05 deg
M 118.4153202252172 0.00010811 deg
tp 2456765.099480570315
(2014-Apr-17.59948057)
0.00021031 JED
period 715.652221634072
1.96
1.413e-05
3.869e-08
d
yr
n .5030376335281965 9.9319e-09 deg/d
Q 2.023307602800211 2.6632e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      8921 days (24.42 yr)  
   first obs. used      1990-08-19  
   last obs. used      2015-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .82527  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:20:10  

Additional Information
 Earth MOID = .167895 AU 
 T_jup = 4.364 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0 mag n/a PDS3 (MPC 29082)  
rotation period rot_per 5.540 h n/a LCDB (Rev. 2015-Feb); 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:
[Pravec, P.; Wolf, M.; Sarounova, L.; Mottola, S.; et al. (1997) Icarus 130, 275-286.]
SMASSII spectral type spec_B X   n/a Xu et al. (1995) Icarus 115, 1-35  

7474 (1992 TC)          Discovered 1992-Oct-01 by McNaught, R. H. at Siding Spring (413)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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