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(2015 TA238)
Classification: Apollo [NEO]          SPK-ID: 3730583
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4212258042197097 0.00055714  
a 1.734230040072399 0.0016773 au
q 1.003727596740923 4.9803e-06 au
i 10.6422247993486 0.0099439 deg
node 20.43045791581024 7.8176e-05 deg
peri 344.9297392634361 0.003033 deg
M 15.10100548844704 1.0676 deg
tp 2458965.508557318740
(2020-Apr-26.00855732)
2.4231 TDB
period 834.177523800699
2.28
1.2102
0.003313
d
yr
n .4315628145430719 0.0006261 deg/d
Q 2.464732483403874 0.0023839 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      4 days  
   first obs. used      2015-10-15  
   last obs. used      2015-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .51081  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:31:15  

Additional Information
 Earth MOID = .0154277 au 
 Jupiter MOID = 2.99733 au 
 T_jup = 4.030 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457311.5 (2015-Oct-16.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4222311406279573 0.00055682  
q 1.002951908077876 4.077e-06 au
tp 2457296.798374820613
(2015-Oct-01.29837482)
0.0008066 TDB
node 20.46895663436532 4.8684e-05 deg
peri 344.7870084524999 0.0030048 deg
i 10.65587132044845 0.0099046 deg
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      4 days  
   first obs. used      2015-10-15  
   last obs. used      2015-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .51081  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:31:15  

Additional Information
 Jupiter MOID = 2.99733 au 
 T_jup = 4.030 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.100495879658044E-7 1.98194457341182E-9 -3.537485419213224E-8 -1.873657261563616E-8 -1.577018615903121E-6 5.514950347064989E-6
q 1.98194457341182E-9 1.662212425183801E-11 1.367033724120773E-9 -1.870818899497756E-10 -8.090117142423431E-9 3.526402574482775E-8
tp -3.537485419213224E-8 1.367033724120773E-9 6.505986921254338E-7 -2.472788822825976E-8 9.870233887975118E-7 -6.270680589956717E-7
node -1.873657261563616E-8 -1.870818899497756E-10 -2.472788822825976E-8 2.370155175221176E-9 6.160546488176601E-8 -3.331686758038883E-7
peri -1.577018615903121E-6 -8.090117142423431E-9 9.870233887975118E-7 6.160546488176601E-8 9.028969762085314E-6 -2.804825725746882E-5
i 5.514950347064989E-6 3.526402574482775E-8 -6.270680589956717E-7 -3.331686758038883E-7 -2.804825725746882E-5 9.810022531640721E-5

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.2   n/a MPO350784  

[ hide close-approach data ]
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
2015-Oct-13 05:28 < 00:01 Earth 0.0148449606679121 0.0147961120386919 0.0148938078428697 8.6155517369642 8.59469356514354 2457308.727653449 0.164209281164207 2424.77819245526 89.7737367210112 1.49409877161874 620.014449393951 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 08:07:35 2018-Dec-11 16:44
2056-Nov-19 22:36 05:11 Earth 0.443781939602098 0.433725276445669 0.453852912043715 19.875931769228 19.8756296916185 2472322.441353272 310.668004254429 517335.642479485 216.32557343215 -14.0579875953956 74321.6384675963 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 08:07:35 2018-Dec-11 16:44
2063-Jul-31 22:07 4_03:19 Earth 0.462001277328186 0.35723373800103 0.573088143027682 19.061972150013 19.0616695946912 2474767.421262873 5958.84736260003 6020752.29841467 447.301278781185 25.843829689419 59437.1373830654 T 4 CATAB v2.0e-lin.ifort 2017-Nov-30 08:07:35 2018-Dec-11 16:44
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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