任务档案 · MISSION

SPHEREx & PUNCH

SpaceX · 猎鹰 9 Block 5 · 4E 号发射工位 (SLC-4E)

成功

任务成功

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任务简介

SPHEREx是一项为期两年的天体物理学任务，计划通过近红外光巡天。近红外光虽不可见，但却是解答宇宙诞生及后续星系演化等宇宙问题的有力工具。该任务还将在恒星孕育区（即恒星从气体和尘埃中诞生的区域）以及新行星可能正在形成的恒星周围盘状结构中，搜寻水和有机分子——我们所知生命的基本要素。天文学家将利用该任务收集超过3亿个星系以及银河系内超过1亿颗恒星的数据。 NASA的“日冕与日球层统一偏振仪”（PUNCH）任务将与SPHEREx共享发射。PUNCH由四颗手提箱大小的卫星组成，将聚焦太阳外层大气（日冕）及其如何产生太阳风。这些航天器还将追踪日冕物质抛射——太阳物质的大规模喷发，可在地球附近引发重大空间天气事件——以更好地理解其演化过程，并开发预测此类喷发的新技术。

原文

↗ SpaceX

SPHEREx is a planned two-year astrophysics mission to survey the sky in the near-infrared light, which, though not visible to the human eye, serves as a powerful tool for answering cosmic questions involving the birth of the universe, and the subsequent development of galaxies. It also will search for water and organic molecules – essentials for life as we know it – in regions where stars are born from gas and dust, known as stellar nurseries, as well as disks around stars where new planets could be forming. Astronomers will use the mission to gather data on more than 300 million galaxies, as well as more than 100 million stars in our own Milky Way galaxy. NASA’s Polarimeter to Unify the Corona and Heliosphere (PUNCH) mission will share a ride to space with SPHEREx. It consists of four suitcase-sized satellites, which will focus on the Sun’s outer atmosphere (the corona) and how it generates the solar wind. The spacecraft also will track coronal mass ejections – large eruptions of solar material that can drive large space weather events near Earth – to better understand their evolution and develop new techniques for predicting such eruptions.

飞行时间线 Flight Timeline27 节点

T−38:00

加注决议通过GO for Prop Load

Launch director verifies go for propellant load

T−35:00

一级 LOX (液氧) 加注Stage 1 LOX Load

Start of liquid oxygen loading in the first stage

T−35:00

推进剂加注开始Prop Load

Start of propelland loading

T−16:00

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−01:00

燃料箱增压Tank Press

Fuel tanks are pressurized to flight levels

T−01:00

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−00:03

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+02:16

主发动机关机MECO

Cut-off of the main engine

T+02:20

二级分离Stage 2 Separation

Separation of the second stage from the first

T+02:28

二级发动机第一次启动SES-1

First start of the second engine

T+02:33

助推器返回点火Booster Boostback Burn Startup

Start of the booster boostback burn

T+03:00

整流罩分离Fairing Separation

Separation of the payload fairing

T+03:28

助推器返回关机Booster Boostback Burn Shutdown

End of the booster boostback burn

T+06:13

再入减速点火Entry Burn Startup

Start of the atmospheric entry burn

T+06:32

再入减速关机Entry Burn Shutdown

End of the atmospheric entry burn

T+07:27

一级着陆减速点火Stage 1 Landing Burn

Start of the first stage landing burn

T+07:54

一级着陆Stage 1 Landing

Landing of the first stage

T+08:16

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+39:28

二级发动机第二次启动SES-2

Second start of the second engine

T+40:10

二级发动机第二次关机SECO-2

Second cut-off of the second engine

T+41:56

载荷分离Payload Separation

Final deployment of the payload from the rocket

T+52:16

载荷分离Payload Separation

Final deployment of the payload from the rocket

T+53:07

载荷分离Payload Separation

Final deployment of the payload from the rocket

任务更新32 条

12:5903/12

Cosmic_Penguin · 03/12

Payload Signal Acquisition confirmed.