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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 229 days

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Ephemeris
(Epoch 59552 MJD)
Right Ascension 181.287 deg
Declination -4.77122 deg
V Magnitude 21.01 mag
Solar Elongation 68.72 deg
Galactic Latitude 56.2 deg
Rate 0.795 deg/day
Direction 113.977 deg

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