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70656 (1999 TF257)
Classification: Main-belt Asteroid          SPK-ID: 2070656
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350719206649405 4.5476e-08  
a 2.467581323920581 1.2827e-08 au
q 2.134280375101692 1.1128e-07 au
i 5.116556350767716 4.2924e-06 deg
node 304.8167372125366 5.429e-05 deg
peri 310.9660737108328 5.774e-05 deg
M 205.121094854237 2.3656e-05 deg
tp 2459609.609548880827
(2022-Jan-30.10954888)
9.5297e-05 TDB
period 1415.812162351772
3.88
1.104e-05
3.023e-08
d
yr
n .2542710181285718 1.9826e-09 deg/d
Q 2.800882272739471 1.456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      8264 days (22.63 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:56  

Additional Information
 Earth MOID = 1.12345 au 
 Jupiter MOID = 2.27119 au 
 T_jup = 3.468 
[ 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 15.6   n/a MPO351340  

70656 (1999 TF257)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TF257 = 1998 HQ154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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