Special Containment Procedures: SCP-5153 is to be contained via a low-intensity disinformation campaign. Foundation scientists are to track and monitor all potential Near Earth Objects in search of SCP-5153. In the event that SCP-5153 is rediscovered, its trajectory and estimated time of arrival are to be tracked. SCP-5153 is not to be neutralized, as it does not pose a risk to both the continued survival of humanity and the Veil.
Description: SCP-5153 is a meteor measuring approximately thirteen kilometers across. Invariably, SCP-5153 will approach Earth, seemingly on a course to impact somewhere in Siberia. Despite this, SCP-5153 will demanifest when it is within fifteen kilometers from the ground, resulting in a large displacement of energy similar to an airburst explosion.
Addendum 5153.1: Confirmed Manifestations of SCP-5153.
Eight confirmed manifestations of SCP-5153 have occurred between 1908 and 2018, and Foundation astrophysicists are currently tracking a Near-Earth Object that is believed to be SCP-5153 which is on a course to impact in February of 2020.
| Date of Impact | Location | Casualties |
| 30 June 1908 | Tunguska River, Russia | Three dead |
| 9 April 1941 | Chelyabinsk, USSR | None |
| 12 February 1947 | Sikhote-Alin Mountains, USSR | None |
| 25 September 2002 | Bodaybo, Russia | None |
| 7 February 2009 | Tyumen Oblast, Russia | None |
| 15 February 2013 | Chelyabinsk, Russia | 1491 injured |
| 15 December 2017 | Kamchatka, Russia | None |
| 18 December 2018 | Kamchatka, Russia | None |
| Predicted to arrive 25 February 2020 | Predicted to land in Lake Baikal, Russia | No Casualties Predicted |
Page revision 4/5 from 08/12/2018
