use of GLONASS: Furuno JAVAD GNSS, Inc Septentrio Topcon C-Nav Magellan Navigation Novatel ComNav technology Ltd. Leica Geosystems Hemisphere GNSS Trimble Inc u-blox NPO Progress describes a receiver called GALS-A1, which combines GPS and GLONASS reception. SkyWave Mobile Communications manufactures an Inmarsat-based satellite communications terminal that uses both GLONASS and GPS. , some of the latest receivers in the Garmin eTrex line also support GLONASS (along with GPS). Garmin also produce a standalone Bluetooth receiver, the GLO for Aviation, which combines GPS, WAAS and GLONASS. Various smartphones from 2011 onwards have integrated GLONASS capability in addition to their pre-existing GPS receivers, with the intention of reducing signal acquisition periods by allowing the device to pick up more satellites than with a single-network receiver, including devices from: Xiaomi Sony Ericsson ZTE Huawei Samsung Apple (since iPhone 4S) HTC LG Motorola Nokia Status Availability , the GLONASS constellation status is: The system requires 18 satellites for continuous navigation services covering all of Russia, and 24 satellites to provide services worldwide. The GLONASS system covers 100% of worldwide territory. On 2 April 2014, the system experienced a technical failure that resulted in practical unavailability of the navigation signal for around 12 hours. On 14–15 April 2014, nine GLONASS satellites experienced a technical failure due to software problems. On 19 February 2016, three GLONASS satellites experienced a technical failure: the batteries of GLONASS-738 exploded, the batteries of GLONASS-737 were depleted, and GLONASS-736 experienced a stationkeeping failure due to human error during maneuvering. GLONASS-737 and GLONASS-736 are expected to be operational again after maintenance, and one new satellite (GLONASS-751) to replace GLONASS-738 is expected to complete commissioning in early March 2016. The full capacity of the satellite group is expected to be restored in the middle of March 2016. After the launching of two new satellites and maintenance of two others, the full capacity of the satellite group was restored. Accuracy According to Russian System of Differentional Correction and Monitoring's data, , precision of GLONASS navigation definitions (for p=0.95) for latitude and longitude were with mean number of navigation space vehicles (NSV) equals 7—8 (depending on station). In comparison, the same time precision of GPS navigation definitions were with mean number of NSV equals 6—11 (depending on station). Some modern receivers are able to use both GLONASS and GPS satellites together, providing greatly improved coverage in urban canyons and giving a very fast time to