Star One C1

{{Short description|Brazilian communications satellite}}

{{Infobox spaceflight

| name = Star One C1

| image =

| image_caption =

| mission_type = Communications

| operator = Star One

| website =

| COSPAR_ID = 2007-056A

| SATCAT = 32293

| mission_duration = 15 years

| spacecraft_bus = Spacebus-3000B3

| manufacturer = Thales Alenia Space

| dimensions = 5.3 x 3.3 x 2.5 m

| dry_mass = {{convert|1754|kg|lb}}

| launch_mass = {{convert|4100|kg|lb}}

| power = 10,5 kW

| launch_date = {{start-date|14 November 2007, 22:06|timezone=yes}} UTC

| launch_rocket = Ariane 5ECA

| launch_site = Kourou ELA-3

| launch_contractor = Arianespace

| entered_service =

| disposal_type =

| deactivated =

| orbit_epoch =

| orbit_reference = Geocentric

| orbit_regime = Geostationary

| orbit_semimajor = {{convert|42241.0|km|mi|sp=us}}

| orbit_periapsis = {{convert|35860.5|km|mi|sp=us}}

| orbit_apoapsis = {{convert|35879.7|km|mi|sp=us}}

| orbit_inclination =

| orbit_period = 1,440.0 minutes

| orbit_longitude = 65° west

| orbit_slot =

| apsis = gee

| trans_band = 28 IEEE C-band (NATO G/H-band)
16 IEEE {{Ku band}} (NATO J-band)
{{nowrap|1 IEEE X-band (NATO H/I/J-band)}}

| trans_frequency =

| trans_bandwidth =

| trans_capacity =

| trans_coverage =

| trans_TWTA =

| trans_EIRP =

| trans_HPBW =

}}

Star One C1 is a Brazilian communications satellite. It was launched on 14 November 2007 by an Ariane 5ECA carrier rocket, as part of a dual-payload launch with Skynet 5B. It was built by Thales Alenia Space, based on the Spacebus-3000B3 satellite bus.{{Cite web |title=Star One C1, C2 |url=https://space.skyrocket.de/doc_sdat/starone-c.htm |access-date=2023-05-20 |website=Gunter's Space Page |language=en}} It is operated by Star One, a subsidiary of Embratel.