Intelsat 19
| Mission type | Communications |
|---|---|
| Operator | Intelsat |
| COSPAR ID | 2012-030A |
| Mission duration | 15 years |
| Spacecraft properties | |
| Bus | LS-1300E |
| Manufacturer | Space Systems Loral |
| Start of mission | |
| Launch date | 1 June 2012, 05:25 UTC |
| Rocket | Zenit-3SL |
| Launch site | Odyssey |
| Contractor | Sea Launch |
| Entered service | 13 August 2012 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 166° East |
| Period | 24 hours |
| Transponders | |
| Band | IEEE C band IEEE Ku band |
| Coverage area | Asia-Pacific Australia |
Intelsat 19 is a geostationary communications satellite operated by Intelsat. It was constructed by Space Systems Loral, based on the LS-1300E satellite bus. It was successfully launched by Sea Launch using a Zenit-3SL carrier rocket on 1 June 2012. Upon entering service it replaced Intelsat 8 at 166° East Longitude.
Intelsat 19 carries 24 C-band and 36 Ku-band transponders. The C band payload covers the Asia-Pacific region while the Ku band transponders provide Direct to Home television to Australia. It is expected to operate for fifteen years.
In June 2012, Intelsat 19 successfully transferred to geostationary orbit. All of the satellite’s communications antennas were in their operational positions, and the communications payload was being tested. Data received from the satellite indicated that the south solar array was damaged, and that the power available to the satellite will be reduced. In-orbit testing was expected to be completed by mid-July.
In July 2012, Intelsat 19 completed its in-orbit testing and the satellite drifted to its final location at 166 East, where it was expected to begin service in mid-August.
On 13 August 2012, the satellite entered commercial service as customer traffic previously on Intelsat 8 was transitioned over.
Intelsat announced late 1 June that its South solar array failed to deploy. The failure followed a pressure/vibration anomaly recorded during launch. The only other time this anomaly was observed on the Sea Launch vehicle was during a 2004 launch which also delivered a payload with solar array damage. Intelsat 19's solar array damage was evident by telemetry – after fairing jettison and before satellite release – during which time the array was exposed to Sun.
The South solar array panel was eventually deployed on 12 June 2012, following four apogee maneuver firings on 11 June 2012, and appears to have lost 50% of its capacity, leaving the satellite with 75% of its design power capacity. The Ku-band deflector deployment is scheduled for 18 July.
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