Plots with full rotation-phase coverage and with the strongest periodogram peak at the known period.
Courtesy of Nic Erasmus; Data provided by: the ATLAS team, Elisabeta Petrescu et al., David Polishook et al. and Melissa Brucker et al.

Potential Earth-impactor (99942) Apophis on UT 2021 Jan. 16 (18:21 and 21:45). Exposure duration is 2520 and 2640 seconds. The FOV is 51x51 minutes of arc, orientation north-up/east-left. At the time of observation the object was 111.0 degrees from the sun and 0.204 AU from the Earth. The parallax effects of the spacecraft during nearly half an orbit (101 minute orbit) are seen in the star arcs. The radial profile of the object shows no sign of cometary activity. Canadian NEOSSat orbiting telescope (C53).
Courtesy of D. D. Balam (DAO), C. E. Spratt (ret), D. W. E. Green (CBAT) , J. Psotka (CSA) & Canadian Space Agency.



Reflectance spectrum of Apophis, observed with NASA's IRTF, matching a Sq-type.
Courtesy of David Polishook


Apophis as observed on Christmas eve from the Israeli desert (Wise Observatory, 097)
David Polishook, Wise Observatory

Orbit Animation