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70632 (1999 TN220)
Classification: Main-belt Asteroid          SPK-ID: 2070632
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814799216473415 3.8083e-08  
a 2.637446381655791 1.2225e-08 au
q 2.158802818963834 1.0233e-07 au
i 10.65724369749889 6.7357e-06 deg
node 347.4670431480988 1.7771e-05 deg
peri 297.4506981093076 2.7415e-05 deg
M 9.041511311542443 1.7819e-05 deg
tp 2458961.207250901195
(2020-Apr-21.70725090)
7.7528e-05 TDB
period 1564.493942236371
4.28
1.0877e-05
2.978e-08
d
yr
n .2301063559794912 1.5998e-09 deg/d
Q 3.116089944347749 1.4443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      7726 days (21.15 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52049  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:59:51  

Additional Information
 Earth MOID = 1.16708 au 
 Jupiter MOID = 2.17511 au 
 T_jup = 3.349 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO474585  

70632 (1999 TN220)          Discovered 1999-Oct-01 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1988-Dec-08 13:25 < 00:01 Europ 0.03974411384104 0.0397405504167098 0.0397476774996904 6.47806502334473 6.47806498206341 2447504.059056968 0.600329478034699 239.500145051546 56.9895569258496 -43.6693006685057 74221.4755175111 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 21:59:53 2020-Nov-12 21:59

Alternate Designations
 1999 TN220 = 2002 EV70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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