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7247 (1991 TD1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2007247
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184351146649906 7.2618e-08  
a 1.917059461501613 8.4894e-09 AU
q 1.690012304359064 1.4106e-07 AU
i 22.9193449404108 8.1776e-06 deg
node 190.8497092028329 1.2675e-05 deg
peri 193.9626531529738 2.9517e-05 deg
M 192.5686021097377 2.8965e-05 deg
tp 2457251.406197694644
(2015-Aug-16.90619769)
7.9149e-05 JED
period 969.5089046348604
2.65
6.44e-06
1.763e-08
d
yr
n .3713220149696143 2.4665e-09 deg/d
Q 2.144106618644162 9.4948e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      930  
   data-arc span      14149 days (38.74 yr)  
   first obs. used      1975-10-03  
   last obs. used      2014-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49302  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:16:34  

Additional Information
 Earth MOID = .693458 AU 
 T_jup = 3.824 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO263414  
rotation period rot_per 6.3515 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Warner, B.D. (2013). Minor Planet Bul. 40, 36-42.]

7247 (1991 TD1)          Discovered 1991-Oct-12 by McNaught, R. H. at Siding Spring (413)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 TD1 = 1975 TQ2 = 1990 FS4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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