October 23, 2025
<sid.inpe.br/mtc-m21d/2021/10.25.14.37>
(repository)

Journal Article
First approximation for spacecraft motion relative to (99942) Apophis
Aljbaae, Safwan & Merguizo Sanchez, Diogo & Prado, Antonio Fernando Bertachini de Almeida & Souchay, Jean & Terra, Maisa O. & Negri, Rodolfo Batista & Marchi, Luis Otávio :2021:
(metadata from site <mtc-m21d.sid.inpe.br 808>)

The number of visits¹ since December 4, 2021 is 291.

Average number of visits per day over 10 periods of 142 days

0.11 0.20 0.08 0.12 0.27 0.13 0.51 0.02 0 0.60   1       2      3      4      5      6      7      8      9       10

The height of the purple bar is proportional to the average number of visits per day
within the corresponding period.
Period 1 begins on December 4, 2021 ( ), and Period 10 ends on October 23, 2025 ( ).
The number of visits over the 10 periods is 291.
The average number of visits per day over the 10 periods is 0.20.
¹Before May 17, 2015, all each user visits (IP) were added, thereafter, only one visit per day for each user (IP) is added.