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Nancy Grace Roman Space Telescope

SpaceX · 重型猎鹰 · B1072 · 39A 号发射工位 (LC-39A)

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任务简介

南希·格雷斯·罗曼太空望远镜是NASA的一台红外太空望远镜，配备2.4米（7.9英尺）宽视场主镜和两台科学仪器。广域仪器（WFI）是一台300.8百万像素的多波段可见光和近红外相机，在0.28平方度的视场内提供与哈勃太空望远镜相当的图像清晰度，视场比哈勃上的成像相机大100倍。日冕仪（CGI）是一台高对比度、小视场相机和光谱仪，覆盖可见光和近红外波段，采用新型星光抑制技术。罗曼望远镜的目标包括利用引力微透镜搜寻系外行星，探测宇宙膨胀历史和宇宙结构的增长，以测量暗能量的影响、广义相对论的一致性以及时空曲率。

原文

↗ SpaceX

The Nancy Grace Roman Space Telescope is a NASA infrared space telescope with a 2.4 m (7.9 ft) wide field of view primary mirror and two scientific instruments. The Wide-Field Instrument (WFI) is a 300.8-megapixel multi-band visible and near-infrared camera, providing a sharpness of images comparable to that achieved by the Hubble Space Telescope over a 0.28 square degree field of view, 100 times larger than imaging cameras on the Hubble. The Coronagraphic Instrument (CGI) is a high-contrast, small field of view camera and spectrometer covering visible and near-infrared wavelengths using novel starlight-suppression technology. Roman objectives include a search for extra-solar planets using gravitational microlensing, and probing the expansion history of the Universe and the growth of cosmic structure, with the goal of measuring the effects of dark energy, the consistency of general relativity, and the curvature of spacetime.

飞行时间线 Flight Timeline29 节点

T−53:00

加注决议通过GO for Prop Load

Launch director verifies go for propellant load

T−50:00

一级推进剂加注开始Stage 1 Propellant Load

Start of propellant loading in the first stage

T−45:00

一级 LOX (液氧) 加注Stage 1 LOX Load

Start of liquid oxygen loading in the first stage

T−35:00

二级推进剂加注开始Stage 2 Propellant Load

Start of propellant loading in the second stage

T−18:30

二级 LOX (液氧) 加注Stage 2 LOX Load

Start of liquid oxygen loading in the second stage

T−07:00

发动机预冷Engine Chill

Start of engine chilling

T−00:59

自动倒数启动Startup

The onboard computer takes control over the countdown and runs last checks

T−00:45

发射决议通过GO for Launch

Launch director verifies go for launch

T−00:20

燃料箱增压Tank Press

Fuel tanks are pressurized to flight levels

T−00:06

点火Ignition

Start of the engine ignition sequence

T+00:00

升空Liftoff

First upwards movement of the rocket

T+01:08

最大动压点Max-Q

Maximum dynamic pressure

T+02:24

侧助推器关机SBECO

Cut-off of the side boosters

T+02:27

侧助推器分离Boosters Separation

Separation of the side boosters

T+02:32

侧助推器翻转Boosters Flip

Flip maneuver of the side boosters

T+02:43

侧助推器返回点火Boosters Boostback Burn Startup

Start of the boosters boostback burn

T+03:48

侧助推器返回关机Boosters Boostback Burn Shutdown

End of the boosters boostback burn

T+03:51

主发动机关机MECO

Cut-off of the main engine

T+03:54

二级分离Stage 2 Separation

Separation of the second stage from the first

T+04:00

二级发动机第一次启动SES-1

First start of the second engine

T+04:15

整流罩分离Fairing Separation

Separation of the payload fairing

T+06:19

侧助推器再入减速点火Boosters Entry Burn Startup

Start of the boosters atmospheric entry burn

T+06:29

侧助推器再入减速关机Boosters Entry Burn Shutdown

End of the boosters atmospheric entry burn

T+07:23

侧助推器着陆减速Boosters Landing Burn

Start of the boosters landing burn

T+07:40

侧助推器着陆Boosters Landing

Landing of the boosters

T+08:28

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+24:33

二级发动机第二次启动SES-2

Second start of the second engine

T+26:32

二级发动机第二次关机SECO-2

Second cut-off of the second engine

T+31:31

载荷分离Payload Separation

Final deployment of the payload from the rocket

载荷1

Sun–Earth L2

任务更新19 条

21:3008/30

Cosmic_Penguin · 1 天前

Launch success with telescope solar panels/sunshade deployed.

任务成功

Nancy Grace Roman Space Telescope

任务简介

飞行时间线 Flight Timeline29 节点

载荷1

任务更新19 条

同火箭发射时间最近 5 条

同发射场发射时间最近 5 条