TDRS-L

TDRS-L
Spacecraft properties
TDRS-L in its payload shroud, being hoisted atop its Atlas V launcher

Mission type	Communications
Operator	NASA
COSPAR ID	2014-004A
SATCAT №	39504
Mission duration	15 years (planned)

Bus	BSS-601HP
Manufacturer	Boeing
Launch mass	3,454 kg (7,615 lb)^[1]

Start of mission
Launch date	January 24, 2014, 02:33:00 (2014-01-24UTC02:33Z) UTC^[2]
Rocket	Atlas V 401
Launch site	Cape Canaveral SLC-41
Contractor	United Launch Alliance

Orbital parameters
Reference system	Geocentric
Regime	Geosynchronous orbit
Perigee	35,785 kilometers (22,236 mi)^[3]
Apogee	35,797 kilometers (22,243 mi)^[3]
Inclination	6.77 degrees^[3]
Period	1436.03 minutes^[3]
Epoch	January 22, 2015, 07:10:47 UTC^[3]

TDRS-L, to be renamed TDRS-12 upon entry into service, is an American communications satellite operated by NASA as part of the Tracking and Data Relay Satellite System. The twelfth Tracking and Data Relay Satellite, it is the second third-generation spacecraft to be launched, following TDRS-11 in 2013.^[4]

Spacecraft

TDRS-L was constructed by Boeing, based on the BSS-601HP satellite bus. Fully fueled, it has a mass of 3,454 kg (7,615 lb), with a design life of 15 years.^[1] It carries two steerable antennae capable of providing S, Ku and Ka band communications for other spacecraft, with an additional array of S-band transponders for lower-rate communications with five further satellites.^[4] The satellite is powered by two solar arrays, which produce 2.8 to 3.2 kilowatts of power, while an R-4D-11-300 engine is present to provide propulsion.^[1]^[5]

Launch

The United Launch Alliance was contracted to launch TDRS-L. The spacecraft was launched on January 24, 2014 at 02:33 UTC (21:33 local time on January 23).^[2] An Atlas V rocket was used, flying in the 401 configuration, with tail number AV-042.^[5]After launch, TDRS-L was deployed into a high-perigee geosynchronous transfer orbit.^[6] The spacecraft raised itself into a geosynchronous orbit using its onboard propulsion system.

Gallery

References

1 2 3 Krebs, Gunter. "TDRS K, L, M". Gunter's Space Page. Retrieved 23 January 2013.
1 2 "TRDS-L Lifts Off". NASA. Retrieved January 24, 2014.
1 2 3 4 5 "TDRS-12 Satellite details 2014-004A NORAD 39504". N2YO. January 22, 2015. Retrieved January 25, 2015.
1 2 "TDRS-K Media Kit" (PDF). NASA. Retrieved January 23, 2014.
1 2 Graham, William (January 23, 2014). "ULA set to open 2014 campaign with Atlas V launch of TDRS-L". NASASpaceflight.com. Retrieved January 23, 2014.
↑ "TDRS-L Atlas V Mission Overview" (PDF). United Launch Alliance. Retrieved January 23, 2014.

Tracking and Data Relay Satellites

First generation	TDRS-1 TDRS-B TDRS-3 TDRS-4 TDRS-5 TDRS-6 TDRS-7

Second generation	TDRS-8 TDRS-9 TDRS-10

Third generation	TDRS-11 TDRS-L TDRS-M TDRS-N

Italics denotes launch failures. Tracking and Data Relay Satellite System List of TDRS satellites

← 2013 · Orbital launches in 2014 · 2015 →

January	GSAT-14 – Thaicom 6 – CRS Orb-1 (Flock-1 × 28 · ArduSat-2 · Lituanica SAT-1 · LitSat-1 · SkyCube · UAPSat-1) – TDRS-L

February	Progress M-22M – ABS-2 · Athena-Fidus – Türksat 4A – USA-248 – GPM Core · Ginrei · KSAT-2 · INVADER · OPUSAT · STARS-II · TeikyoSat-3 · ITF-1

March	Ekspress AT1 · Ekspress AT2 – Astra 5B · Amazonas 4A – Kosmos 2494 – Soyuz TMA-12M – Shijian XI-06

April	USA-249 – Sentinel-1A – IRNSS-1B – Progress M-23M – Ofek-10 – USA-250 – EgyptSat 2 – SpaceX CRS-3 · KickSat · PhoneSat 2.5 · ALL-STAR/THEIA · SporeSat · TestSat-Lite – Luch 5V · KazSat-3 – KazEOSat 1

May	Kosmos 2495 – Ekspress AM4R – USA-251 – USA-252 – Kosmos 2496 · Kosmos 2497 · Kosmos 2498 · Kosmos 2499 – ALOS-2 · Raijin-2 · UNIFORM-1 · SOCRATES · SPROUT – Eutelsat 3B – Soyuz TMA-13M

June	Kosmos 2500 – Deimos-2 · KazEOSat 2 · Hodoyoshi 3 · Hodoyoshi 4 · AprizeSat 9, 10 · BRITE-Montreal · BRITE-Toronto · BugSat 1 · SaudiSat-4 · TabletSat-Aurora · UniSat-6 (AeroCube-6 · ANTELSAT · Lemur-1 · Tigrisat) · DTUSat-2 · Duchifat-1 · NanoSatC-Br 1 · PACE · Perseus-M × 2 · PolyITAN-1 · POPSAT-HIP-1 · QB50P1 · QB50P2 · Flock-1c × 11 – SPOT 7 · CanX-4 · CanX-5 · AISat · VELOX-I

July	OCO-2 – Gonets-M 18, 19, 20 – Meteor-M 2 · AISSat-2 · DX-1 · Relek · SkySat-2 · TechDemoSat-1 · UKube-1 – O3b × 4 (FM3, FM6, FM7, FM8) – CRS Orb-2 (Flock-1b × 28 · TechEdSat-4) – Orbcomm-2 × 6 – Foton-M No.4 – Progress M-24M – USA-253 · USA-254 · USA-255 – Georges Lemaître ATV

August	USA-256 – AsiaSat 8 – Yaogan 20 A, B, C – WorldView-3 – Gaofen 2 · Heweliusz – Galileo FOC-1 · Galileo FOC-2

September	Chuangxin 1-04 · Lingqiao – AsiaSat 6 – Yaogan 21 · Tiantuo 2 – MEASAT 3b · Optus 10 – USA-257 – SpaceX CRS-4 – Soyuz TMA-14M – Olimp-K – Shijian XI-07

October	Himawari 8 – IRNSS-1C – Intelsat 30 · ARSAT-1 – Yaogan 22 – Ekspress AM6 – Chang'e 5-T1 · 4M – Shijian 11-08 – Cygnus CRS Orb-3 (Arkyd-3 · Flock-1d × 26 · GOMX-2 · RACE) – Progress M-25M – USA-258 – Meridian 7

November	Sasuke · Hodoyoshi 1 · Kinshachi 1 · Tsukushi · Tsubame – Yaogan 23 – Yaogan 24 – Kuaizhou 2 – Soyuz TMA-15M – Kosmos 2501

December	Hayabusa 2 · PROCYON · Shinen 2 · DESPATCH – Orion EFT-1 – DirecTV-14 · GSAT-16 – CBERS-4 – Yaogan 25 A, B, C – USA-259 – Yamal-401 – O3b × 4 (FM9 to FM12) – Kondor-E No.2 – IPM – Kosmos 2502 – Resurs-P No.2 – Yaogan 26 – Astra 2G – Fengyun 2-08

Launches are separated by dashes ( – ), payloads by dots ( · ). Manned flights are bolded. Launch failures are in italics. Payloads deployed from other spacecraft are (enclosed in brackets).

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