Nahuel 1A was a Spacebus

Spacebus

Spacebus is a satellite bus produced at the Cannes Mandelieu Space Center in France by Thales Alenia Space. Spacebuses are typically used for geostationary communications satellites, and fifty-two have been launched since development started in the 1980s. Spacebus was originally produced by...

 2000NG satellite manufactured by Aérospatiale

Aérospatiale

Aérospatiale was a French aerospace manufacturer that built both civilian and military aircraft, rockets and satellites. It was originally known as Société Nationale Industrielle Aérospatiale...

 in Cannes-Mandelieu and launched on January 30, 1997 by an Ariane 44L launcher.
The satellite was located in the -71.8 degrees slot. It was operated by Nahuelsat S.A., the first satellite operator of Argentina from its ground station in Benavidez, province of Buenos Aires.
Satellite mass was 1.8T wet, 860 Kg dry. Nominal lifetime was 12 years. It had 18 54 Mhz transponder

Transponder

In telecommunication, the term transponder has the following meanings:...

s implemented with 55W TWTAs in three Ku

Ku band

The Kμ band is a portion of the electromagnetic spectrum in the microwave range of frequencies. This symbol refers to —in other words, the band directly below the K-band...

and extended Ku band coverages.
It was successfully reorbited in June 2010, when most of the on-board propellant depleted, using the remaining propellant and blowdown helium still stored in the propellant tanks.