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(99942) Apophis  ▹ 
SUMMARY
Keplerian elements
(Epoch 59200.0 MJD)
Value 1-σ variation Units
a 0.922525 8.921e-11 au
e 0.191509 1.538e-09
i 3.337 1.737e-07 deg
Ω 204.042 8.703e-06 deg
ω 126.654 9.299e-06 deg
M 110.632 1.285e-06 deg

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Non-gravitational parameters
Value 1-σ variation Units
A1 N/A N/A au/day2
A2 -2.900e-14 2.462e-16 au/day2
Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.7459 au
Aphelion distance 1.0992 au
Asc. node-Earth separation -0.0007 au
Desc. node-Earth separation -0.1995 au
Earth MOID 0.00021 au
Orbital period 323.642 days
Date of orbit computation   Apr 20 2021

Observational summary
Optical observations (Discarded) 7845 (14)
Radar observations (Discarded) 50 (0)
Arc length 6244 days
Unobserved 192 days

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Ephemeris
(Epoch 59515 MJD)
Right Ascension 154.318 deg
Declination 7.2034 deg
V Magnitude 21 mag
Solar Elongation 60.96 deg
Galactic Latitude 48.4 deg
Rate 0.805 deg/day
Direction 113.122 deg

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