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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2920926980831622 1.1305e-07  
a 1.565619764824691 2.1716e-08 AU
q 1.108313663544721 1.8054e-07 AU
i 7.088257882283095 9.4177e-06 deg
node 88.66804543036561 5.5417e-05 deg
peri 275.5221238893423 8.4837e-05 deg
M 17.83078783647053 0.00010984 deg
tp 2456765.059821419198
(2014-Apr-17.55982142)
0.00021758 JED
period 715.530037489023
1.96
1.4887e-05
4.076e-08
d
yr
n .5031235324003052 1.0468e-08 deg/d
Q 2.022925866104661 2.8059e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      8243 days (22.57 yr)  
   first obs. used      1990-08-19  
   last obs. used      2013-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .83074  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:59:41  

Additional Information
 Earth MOID = .167113 AU 
 T_jup = 4.365 
[ 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 Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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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