Possible error on DB 3000 Weapon_554, 90, 870, 89, 553, 72, 93, 1721, (Baseline JDAM series, GBU31/32/28). Currently it is listed as 10meters. It should be 5 meters.
The CEP of the JDAM is officially listed as 13 meters. See IHS. "GBU-31, GBU-32 and GBU-38 Joint Direct Attack Munition (JDAM)." Jane's Air-Launched Weapons, February 2015, FAS reports that the JDAM achieved an accuracy of 10 meters CEP in tests: Federation Of American Scientists. Accessed December 29, 2019.
https://fas.org/man/dod-101/sys/smart/jdam.htm This 10 meter figure is the CEP used in the database.
However, Jane's/IHS reports that based on experience, the JDAM is capable of 14 meters CEP with only INS guidance, and
8 meters with INS and GPS guidance. See IHS. "GBU-31, GBU-32 and GBU-38 Joint Direct Attack Munition (JDAM)." Jane's Air-Launched Weapons, February 2015. This figure is partially confirmed by the USAF, which in 2003 reported "[JDAM 31/32/38] weapon circular error probable of
5 meters or less during free flight when GPS data is available." [emphasis added]. see
https://www.af.mil/About-Us/Fact-Sheets ... bu-313238/
One other minor edit: The database gives the range of the JDAM as 1-12 nm. Janes's gives a maximum range of 13 nm. The USAF source cited above (
https://www.af.mil/About-Us/Fact-Sheets ... bu-313238/) claims 15 miles, but that may be statute miles. If so, that is consistent with Jane's 13nm figure.
UPDATE: The JDAM program office confirms the 5 meter CEP. See
https://www.esd.whs.mil/Portals/54/Docu ... c_2018.pdf at page 8.