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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2920926660950844 1.1153e-07  
a 1.565619767672848 2.3677e-08 AU
q 1.108313715642119 1.7806e-07 AU
i 7.088267420653091 9.6739e-06 deg
node 88.66804856483292 6.4662e-05 deg
peri 275.5221349241502 9.6553e-05 deg
M 17.83077442466296 0.000121 deg
tp 2456765.059847979577
(2014-Apr-17.55984798)
0.0002397 JED
period 715.5300394415486
1.96
1.6232e-05
4.444e-08
d
yr
n .5031235310273906 1.1413e-08 deg/d
Q 2.022925819703577 3.0593e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      252  
   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      .77414  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 09:20:16  

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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