the spacecraft is not publicly known. According to unsourced media claims, U.S. lawmakers were reportedly briefed about the loss of the spacecraft and an unnamed government official said that it had re-entered the atmosphere over the Indian Ocean, possibly due to a failure in the payload adapter provided by Northrop Grumman in detaching from the second stage. According to The Wall Street Journal, sensors had not reported the initial failure to detach. Later on, Zuma did ultimately detach from the upper stage payload adapter, but only after it was too late and with the orbit too low to attempt a rescue of the satellite. President and COO of SpaceX Gwynne Shotwell stated, "For clarity: after review of all data to date, Falcon 9 did everything correctly on Sunday night. If we or others find otherwise based on further review, we will report it immediately. Information published that is contrary to this statement is categorically false. Due to the classified nature of the payload, no further comment is possible." Lon Rains, Communications Director of Northrop Grumman, stated that the company could not comment on the status of classified missions. Three days later, the Zuma mission patch had been removed from sale in the souvenir shop at the Air Force Space and Missile Museum and from online sales. On 8 April 2018, The Wall Street Journal reported that two independent investigations "tentatively concluded" that the spacecraft failed to separate from the payload adapter after launch due to errors introduced by Northrop Grumman. The adapter had been bought by Northrop Grumman from a subcontractor and heavily modified for use on the mission. Due to the classified nature of the mission, detailed information on the satellite and its fate may not be publicly released. Officially, North American Aerospace Defense Command (NORAD) still lists the satellite but with no orbital parameters and the orbital status code "no elements available", which is standard procedure for classified missions. In the media The U.S. government has not publicly stated if there was a failure of Zuma, and this secrecy has generated speculations on its purpose and its fate. A number of articles published by the amateur satellite tracking community stated that if the satellite was still in orbit or operating covertly, then it would likely be located visually. In the process of searching for Zuma, amateur astronomers instead found radio transmissions from IMAGE, a NASA satellite that was