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(2018 TW1)
Classification: Apollo [NEO]          SPK-ID: 3831214
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .471215607013045 0.0004845  
a 1.898599846136376 0.0017432 au
q 1.003949967164349 2.0457e-06 au
i 8.659459397374654 0.0063598 deg
node 192.8240270715242 0.00034301 deg
peri 191.671080078571 0.0030665 deg
M 298.8516203220078 0.41061 deg
tp 2459362.804679580823
(2021-May-28.30467958)
1.3134 TDB
period 955.5393774420074
2.62
1.316
0.003603
d
yr
n .3767505646535731 0.00051887 deg/d
Q 2.793249725108402 0.0025646 au
  Orbit Determination Parameters
   # obs. used (total)      43  
   data-arc span      2 days  
   first obs. used      2018-10-05  
   last obs. used      2018-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .511  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-07 09:12:11  

Additional Information
 Earth MOID = .00967692 au 
 Jupiter MOID = 2.66464 au 
 T_jup = 3.794 
[ show covariance matrix ]

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 27.8   .34321 MPO458800 autocmod 2.6n

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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