This is a list of launches made by the R-7 Semyorka ICBM, and its derivatives between 2020 and 2024. All launches are orbital satellite launches, unless stated otherwise.
Launch statistics
editRocket configurations
editLaunch sites
edit5
10
15
20
25
30
2020
'21
'22
'23
'24
- Baikonur Site 1/5
- Baikonur Site 31/6
- Plesetsk Site 43/3
- Plesetsk Site 43/4
- Vostochny Site 1S
- Guiana ELS
Launch outcomes
edit5
10
15
20
25
30
2020
'21
'22
'23
'24
- Failure
- Partial failure
- Success
- Scheduled
Launch history
edit
2020edit | ||||||||
Flight No. | Date / time (UTC) | Rocket, Configuration |
Launch site | Payload | Payload mass | Orbit | Customer | Launch outcome |
---|---|---|---|---|---|---|---|---|
ST-27 | 6 February 2020, 21:42:41 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 31/6, Baikonur | OneWeb x 34 | OneWeb | Success | ||
Low Earth orbit communication satellites | ||||||||
20 February 2020, 08:24:54 |
Soyuz-2.1a / Fregat-M (14A14A) |
Site 43/3, Plesetsk | Meridian 9 | Success | ||||
Military Communications satellite | ||||||||
16 March 2020, 18:28:10 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 43/4, Plesetsk | Kosmos 2535 (GLONASS-M) | Success | ||||
Navigation satellite | ||||||||
ST-28 | 21 March 2020, 17:06:58 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 31/6, Baikonur | OneWeb x 34 | OneWeb | Success | ||
Low Earth orbit communication satellites | ||||||||
9 April 2020, 08:05:06 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Soyuz MS-16 | Success | ||||
Piloted flight with three cosmonauts, ISS Expedition 62/63. First flight of the Soyuz-2 rocket series for a crew mission. | ||||||||
25 April 2020, 01:51:41 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-14 | Success | ||||
ISS logistics | ||||||||
22 May 2020, 07:31:17 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 43/4, Plesetsk | Kosmos 2546 (EKS-4/Tundra 14L) | Success | ||||
Early warning satellite | ||||||||
23 July 2020, 14:26:21 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-15 | Success | ||||
ISS logistics | ||||||||
28 September 2020, 11:20:32 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 43/4, Plesetsk | Gonets-M x 3, 20 microsatellites | Success | ||||
Low Earth orbit communication satellites | ||||||||
14 October 2020, 05:45:04 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Soyuz MS-17 | Success | ||||
Piloted flight with three cosmonauts, ISS Expedition 63/64. | ||||||||
25 October 2020, 19:08:42 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 43/4, Plesetsk | Kosmos 2547 (GLONASS-K 15L) | Success | ||||
Navigation satellite | ||||||||
VS-24 | 2 December 2020, 01:33:28 |
Soyuz-ST-A / Fregat-M (14A14A) |
ELS, Guiana | FalconEye 2 | Success | |||
Earth observation satellite | ||||||||
3 December 2020, 01:14:36 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 43/3, Plesetsk | Gonets-M x 3, Kosmos 2458 | Success | ||||
Low Earth orbit communication satellites | ||||||||
ST-29 | 18 December 2020, 12:26:26 |
Soyuz-2.1b / Fregat (14A14B) |
Site 1S, Vostochny | OneWeb × 36 | OneWeb | Success | ||
Low Earth orbit communication satellites | ||||||||
VS-25 | 29 December 2020, 16:42:07 |
Soyuz-ST-A / Fregat (14A14A) |
ELS, Guiana | CSO-2 | CNES DGA |
Success | ||
Reconnaissance satellite | ||||||||
2021edit | ||||||||
Flight No. | Date / time (UTC) | Rocket, Configuration |
Launch site | Payload | Payload mass | Orbit | Customer | Launch outcome |
2 February 2021, 20:45:28 |
Soyuz-2.1b (14A14B) |
Site 43/4, Plesetsk | Kosmos 2549 (Lotos-S1 №4) | 6000 kg | LEO | VKS | Success | |
ELINT satellite | ||||||||
15 February 2021, 04:45:05 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-16 | 2460 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
28 February 2021, 06:55:01 |
Soyuz-2.1b / Fregat-M (14A14B) |
Site 31/6, Baikonur | Arktika-M №1 | 2100 kg | Molniya | Roscosmos | Success | |
Weather satellite | ||||||||
22 March 2021 06:07:12 |
Soyuz-2.1a / Fregat-M (14A14A) |
Site 31/6, Baikonur | CAS500-1, 37 rideshare payloads |
SSO | Success | |||
38 satellites from 18 different countries, including the first Tunisian satellite. | ||||||||
ST-30 | 25 March 2021 02:47:33 |
Soyuz-2.1b / Fregat (14A14B) |
Site 1S, Vostochny | OneWeb × 36 | 5310 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
9 April 2021 07:42:40 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Soyuz MS-18 | 7080 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts, ISS Expedition 65/66 | ||||||||
ST-31 | 25 April 2021 22:14:08 |
Soyuz-2.1b / Fregat (14A14B) |
Site 1S, Vostochny | OneWeb × 36 | 5310 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
ST-32 | 28 May 2021 17:38:39 |
Soyuz-2.1b / Fregat (14A14B) |
Site 1S, Vostochny | OneWeb × 36 | 5310 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
25 June 2021, 19:50:00 |
Soyuz-2.1b (14A14B) |
Site 43/4, Plesetsk | Kosmos 2550 (Pion-NKS №1) | 6500 kg | SSO | VKS | Success | |
SIGINT satellite | ||||||||
29 June 2021, 23:27:20 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-17 | 2900 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
ST-33 | 1 July 2021 12:48:33 |
Soyuz-2.1b / Fregat (14A14B) |
Site 1S, Vostochny | OneWeb × 36 | 5310 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
ST-34 | 21 August 2021 22:13:40 |
Soyuz-2.1b / Fregat (14A14B) |
Site 31/6, Baikonur | OneWeb × 34 | 5022 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
9 September 2021 19:59:47 |
Soyuz-2.1v (14A15) |
Site 43/4, Plesetsk | Kosmos 2551 (EMKA №2) | SSO | Ministry of Defence | Success | ||
Reconnaissance satellite | ||||||||
ST-35 | 14 September 2021 18:07:19 |
Soyuz-2.1b / Fregat (14A14B) |
Site 31/6, Baikonur | OneWeb × 34 | 5022 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
5 October 2021 08:55:02 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Soyuz MS-19 | 7080 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts including Russian actress Yulia Peresild and filmmaker Klim Shipenko, ISS Expedition 66/67 | ||||||||
ST-36 | 14 October 2021 09:40:10 |
Soyuz-2.1b / Fregat (14A14B) |
Site 1S, Vostochny | OneWeb × 36 | 5310 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
28 October 2021 00:00:32 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-18 | 7000 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
24 November 2021 13:06:35 |
Soyuz-2.1b (14A14B) |
Site 31/6, Baikonur | Progress M-UM, Prichal |
8180 kg (5350 kg Prichal) | LEO (ISS) | Roscosmos | Success | |
ISS assembly | ||||||||
25 November 2021 01:09:13 |
Soyuz-2.1b / Fregat (14A14B) |
Site 43/4, Plesetsk | Kosmos 2552 (EKS-5, Tundra 15L) | Tundra | Ministry of Defence | Success | ||
Early warning satellite | ||||||||
VS-26 | 5 December 2021 00:19:20 |
Soyuz-ST-B / Fregat-MT (14A14B) |
ELS, Kourou | Galileo FOC FM23 Galileo FOC FM24 |
1645 kg | MEO | ESA | Success |
Navigation satellites | ||||||||
8 December 2021 07:38:15 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Soyuz MS-20 | 7080 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts including two tourists. | ||||||||
ST-37 | 27 December 2021 13:10:37 |
Soyuz-2.1b / Fregat (14A14B) |
Site 31/6, Baikonur | OneWeb × 36 | 5310 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites | ||||||||
2022edit | ||||||||
Flight No. | Date / time (UTC) | Rocket, Configuration |
Launch site | Payload | Payload mass | Orbit | Customer | Launch outcome |
5 February 2022 07:00:00 |
Soyuz-2.1a / Fregat (14A14A) |
Site 43/4, Plesetsk | Kosmos 2553 | LEO | VKS | Success | ||
Military satellite | ||||||||
VS-27 | 10 February 2022 18:09:37 |
Soyuz-ST-B / Fregat-MT (14A14B) |
ELS, Guiana | OneWeb × 34 | 5,495 kg | LEO | OneWeb | Success |
Low Earth orbit communication satellites. Final Soyuz launch from Guiana. | ||||||||
15 February 2022 04:25:39 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-19 | 7,000 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
18 March 2022 15:55:18 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Soyuz MS-21 | 7,080 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts, ISS Expedition 67/68 | ||||||||
22 March 2022 12:48:22 |
Soyuz-2.1a / Fregat (14A14A) |
Site 43/4, Plesetsk | Meridian-M 10 (20L) | Molniya | RVSN RF | Success | ||
Military communications satellite | ||||||||
7 April 2022 11:20:18 |
Soyuz-2.1b (14A14B) |
Site 43/3, Plesetsk | Kosmos 2554 (Lotos-S1 №5) | LEO | RVSN RF | Success | ||
ELINT satellite | ||||||||
19 May 2022 08:03:32 |
Soyuz-2.1a (14A14A) |
Site 43/4, Plesetsk | Kosmos 2556 (Bars-M 3L) | 4,000 kg | SSO | RVSN RF | Success | |
Reconnaissance satellite | ||||||||
3 June 2022 09:32:16 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-20 | 7,000 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
7 July 2022 09:18:06 |
Soyuz-2.1b / Fregat (14A14B) |
Site 43/4, Plesetsk | Kosmos 2557 (GLONASS-K 16L) | 935 kg | MEO | VKS | Success | |
Navigation satellite | ||||||||
1 August 2022 20:25:48 |
Soyuz-2.1v / Volga (14A15) |
Site 43/4, Plesetsk | Kosmos 2558 (Nivelir №3) | SSO | Ministry of Defence | Success | ||
Surveillance satellite | ||||||||
9 August 2022 05:52:38 |
Soyuz-2.1b / Fregat (14A14B) |
Site 31/6, Baikonur | Khayyam, 16 rideshare cubesats |
LEO | Success | |||
Earth observation satellite | ||||||||
21 September 2022 13:54:49 |
Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Soyuz MS-22 | 7,080 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts, ISS Expedition 68/69 | ||||||||
10 October 2022 02:52:32[1] |
Soyuz-2.1b / Fregat (14A14B) |
Site 43/3, Plesetsk | Kosmos 2559 (GLONASS-K 17L) | 935–974 kg | MEO | VKS | Success | |
Navigation satellite | ||||||||
21 October 2022 19:20:15 |
Soyuz-2.1v / Volga (14A15) |
Site 43/4, Plesetsk | Kosmos 2561 & 2562 | SSO | VKS | Success | ||
Surveillance satellite | ||||||||
22 October 2022 19:57:09 |
Soyuz-2.1b / Fregat (14A14B) |
Site 1S, Vostochny | Gonets-M 23/24/25 Skif-D |
950 kg | LEO | Gonets Satellite System Roscosmos |
Success | |
Communication satellites | ||||||||
26 October 2022 00:20:09 | Soyuz-2.1a (14A14A) |
Site 31/6, Baikonur | Progress MS-21 | 7000 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
2 November 2022 06:47:48 |
Soyuz-2.1b / Fregat (14A14B) |
Site 43/4, Plesetsk | Kosmos 2563 (EKS-6, Tundra 16L) | Tundra | Ministry of Defence | Success | ||
Early warning satellite | ||||||||
28 November 2022 15:13:50 |
Soyuz-2.1b / Fregat (14A14B) |
Site 43/3, Plesetsk | Kosmos 2564 (GLONASS-M 761) | 1,415 kg | MEO | VKS | Success | |
Navigation satellite | ||||||||
30 November 2022 21:10:25 |
Soyuz-2.1b (14A14B) |
Site 43/4, Plesetsk | Kosmos 2565 (Lotos-S1 №6), Kosmos 2566 | LEO | Ministry of Defence | Success | ||
ELINT satellite | ||||||||
2023edit | ||||||||
Flight No. | Date / time (UTC) | Rocket, Configuration |
Launch site | Payload | Payload mass | Orbit | Customer | Launch outcome |
9 February 2023 06:15:36 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-22 | 7,280 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
24 February 2023 00:04:29 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Soyuz MS-23 | 7,050 kg | LEO (ISS) | Roscosmos | Success | |
Unpiloted flight to replace the damaged Soyuz MS-22 spacecraft | ||||||||
23 March 2023 06:40:11 |
Soyuz-2.1a (14A14A) |
Plesetsk, Site 43/3 | Kosmos 2567 (Bars-M 4L) | 4,000 kg | SSO | VKS | Success | |
Reconnaissance satellite | ||||||||
29 March 2023 19:57:02 |
Soyuz-2.1v (14A15) |
Plesetsk, Site 43/4 | Kosmos 2568 (EO MKA №4) | SSO | VKS | Success | ||
Technology demonstration | ||||||||
24 May 2023 12:56:07 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-23 | 7,280 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
26 May 2023 21:14:51 |
Soyuz-2.1a / Fregat (14A14A) |
Vostochny, Site 1S | Kondor-FKA №1 | 1,050 kg | LEO | Roscosmos | Success | |
Reconnaissance satellite | ||||||||
27 June 2023 13:34:49 |
Soyuz-2.1b / Fregat (14A14B) |
Vostochny, Site 1S | Meteor-M №2-3 42 rideshare satellites |
2,750 kg | SSO | Roscosmos | Success | |
Weather satellite | ||||||||
7 August 2023 13:19:25 |
Soyuz-2.1b / Fregat (14A14B) |
Plesetsk, Site 43/3 | Kosmos 2569 (GLONASS-K2 13L) | 1,642 kg | MEO | VKS | Success | |
Navigation satellite | ||||||||
10 August 2023 23:10:57 |
Soyuz-2.1b / Fregat (14A14B) |
Vostochny, Site 1S | Luna 25 (Luna-Glob lander) | 1,800 kg | TLI | IKI RAN | Success | |
Lunar lander | ||||||||
23 August 2023 01:08:10 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-24 | 7,400 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
15 September 2023 15:44:35 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Soyuz MS-24 | 7,152 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts, ISS Expedition 69/70 | ||||||||
27 October 2023 06:04:43 |
Soyuz-2.1b (14A14B) |
Plesetsk, Site 43/3 | Kosmos 2570 (Lotos-S1 №7), undisclosed payload | LEO | VKS | Success | ||
ELINT satellite | ||||||||
25 November 2023 20:58:06 |
Soyuz-2.1b (14A14B) |
Plesetsk, Site 43/4 | Kosmos 2571 | SSO | VKS | Success | ||
Undisclosed satellite | ||||||||
1 December 2023 09:25:11 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-25 | 7,400 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
16 December 2023, 09:17:48 |
Soyuz-2.1b / Fregat-M (14A14B) |
Baikonur, Site 31/6 | Arktika-M №2 | 2077 kg | Molniya | Roscosmos | Success | |
Weather satellite | ||||||||
21 December 2023 08:48:39 |
Soyuz-2.1b (14A14B) |
Plesetsk, Site 43/4 | Kosmos 2573 (Bars-M 5L) | 4,000 kg | SSO | VKS | Success | |
Reconnaissance satellite | ||||||||
27 December 2023 07:03:44 |
Soyuz-2.1v (14A15) |
Plesetsk, Site 43/4 | Kosmos 2574 (Razbeg No.1) | SSO | VKS | Success | ||
Reconnaissance satellite | ||||||||
2024edit | ||||||||
Flight No. | Date / time (UTC) | Rocket, Configuration |
Launch site | Payload | Payload mass | Orbit | Customer | Launch outcome |
9 February 2024 07:03:44 |
Soyuz-2.1v (14A15) |
Plesetsk, Site 43/4 | Kosmos 2575 (Razbeg No.2) | SSO | VKS | Success | ||
Reconnaissance satellite | ||||||||
15 February 2024 03:25:05 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-26 | 7,400 kg | LEO (ISS) | Roscosmos | Success | |
ISS logistics | ||||||||
29 February 2024 05:43:26 |
Soyuz-2.1b / Fregat (14A14B) |
Vostochny, Site 1S | Meteor-M №2-4 + 18 rideshare satellites | 2,750 kg | SSO | Roscosmos | Success | |
Weather satellite | ||||||||
23 March 2024 12:36:10 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Soyuz MS-25 | 7,152 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts, ISS Expedition 70/71 | ||||||||
31 March 2024 09:36:45 |
Soyuz-2.1b (14A14B) |
Baikonur, Site 31/6 | Resurs-P №4 | 5,920 kg | SSO | Roscosmos | Success | |
Earth observation satellite | ||||||||
16 May 2024 21:21:39 |
Soyuz-2.1b / Fregat-M (14A14B) |
Plesetsk, Site 43/4 | Kosmos 2576 | SSO | VKS | Success | ||
Undisclosed satellite + 6 rideshares | ||||||||
30 May 2024 09:42:59 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-27 | 7,000 kg | LEO (ISS) | Roscosmos | Success | |
ISS Logistics | ||||||||
15 August 2024 03:20:17 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-28 | 7,280 kg | LEO (ISS) | Roscosmos | Success | |
ISS Logistics | ||||||||
11 September 2024 16:23:12 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Soyuz MS-26 | 7,050 kg | LEO (ISS) | Roscosmos | Success | |
Piloted flight with three cosmonauts, ISS Expedition 71/72 | ||||||||
31 October 2024 07:51:31 |
Soyuz-2.1a (14A14A) |
Plesetsk, Site 43/4 | Kosmos 2579 (Bars-M 6L) | SSO | VKS | Success | ||
Reconnaissance satellite | ||||||||
4 November 2024 23:18:40 |
Soyuz-2.1b / Fregat-M (14A14B) |
Vostochny, Site 1S | Ionosfera-M №1-2 + 53 rideshare satellites | SSO | VKS | Success | ||
Ionospheric research | ||||||||
21 November 2024 12:22:23 |
Soyuz-2.1a (14A14A) |
Baikonur, Site 31/6 | Progress MS-29 | 7,280 kg | LEO (ISS) | Roscosmos | Success | |
ISS Logistics | ||||||||
29 November 2024 21:50:25[2] |
Soyuz-2.1a / Fregat-M (14A14A) |
Vostochny, Site 1S | Kondor-FKA №2 | 1,100 kg | SSO | Roscosmos | Success | |
Reconnaissance satellite. | ||||||||
4 December 2024 18:03:13[3] |
Soyuz-2.1b (14A14B) |
Plesetsk, Site 43/4 | Kosmos 2580 (Lotos-S1 No.8) | 6,000 kg | LEO | VKS | Success | |
ELINT satellite. | ||||||||
25 December 2024 07:45:42[4] |
Soyuz-2.1b (14A14B) |
Baikonur, Site 31/6 | Resurs-P №5 | 6,570 kg | SSO | Roscosmos | Success | |
Earth observation satellite. 2,000th R-7 family rocket launched.[5] |
References
edit- ^ Zak, Anatoly (10 October 2022). "Fifth GLONASS-K satellite lifts off". RussianSpaceWeb. Retrieved 10 October 2022.
- ^ Zak, Anatoly (29 November 2024). "Roskosmos launches Kondor-FKA2 radar imager". RussianSpaceWeb. Retrieved 29 November 2024.
- ^ Zak, Anatoly (4 December 2024). "Soyuz launches military payload". RussianSpaceWeb. Retrieved 4 December 2024.
- ^ Zak, Anatoly (25 December 2024). "Soyuz launches Resurs-P5 imaging satellite". RussianSpaceWeb. Retrieved 25 December 2024.
- ^ Berger, Eric (2025-01-02). "Russia just launched the 2,000th Semyorka rocket—it's both a triumph and tragedy". Ars Technica. Retrieved 2025-01-02.
- McDowell, Jonathan. "Launch List - R-7 Family". Jonathan's Space Page. Retrieved 2015-02-20.
- Wade, Mark. "Soyuz". Encyclopedia Astronautica. Archived from the original on 2010-01-07. Retrieved 2015-02-20.