AstDyS-2

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AstDyS ∴ Objects ∴ 1997TT21 ∴ Summary
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(221995) 1997TT21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 5.18842 1.214e-07 au
e 0.064959 7.158e-08
i 5.544 8.69e-06 deg
Ω 211.605 6.102e-05 deg
ω 206.186 8.783e-05 deg
M 74.341 5.93e-05 deg

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Other useful info
Absolute Magnitude (H)    13.7 mag
Slope parameter (G)    0.15 mag
Perihelion 4.8514 au
Aphelion 5.5255 au
Asc. node-Earth separation 4.48125 au
Desc. node-Earth separation 3.88823 au
Earth MOID 3.86467 au
Orbital period 4316.69 days
Date of orbit computation  apr 23 20:36
Observational summary
Optical observations (Discarded) 338 (1)
Radar observations (Discarded) 0 (0)
Arc length 10402.1 days
Unobserved 66 days

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Ephemeris at epoch 60426 MJD
Right Ascension 131.378 deg
Declination 12.4288 deg
V Magnitude 21.42 mag
Solar Elongation -94.48 deg
Galactic Latitude 30.87 deg
Rate 0.072 deg/day
Direction 89.292 deg

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