The planned launch of the X-Ray Imaging and Spectroscopy Mission (XRISM) and the Smart Lander for Investigating Moon (SLIM) aboard the H-IIA Launch Vehicle No. 47 (H-IIA F47) on August 28, 2023, has been postponed due to unsuitable upper wind conditions. When a space agency like NASA or the Japan Aerospace Exploration Agency (JAXA) “scrubs” a launch, it signifies the decision to cancel or delay a scheduled rocket launch.
The H-IIA Launch Vehicle has been operational since 2001, serving as a highly reliable, sizable mainstay rocket, consistently employed in launching satellites and space probes.
This decision can result from various factors. Unfavorable weather conditions, such as high winds or lightning, pose risks to the mission. Technical anomalies in the rocket, spacecraft, or ground equipment may be detected, necessitating a postponement. Safety concerns arise if the launch or landing zones are not clear of obstructions or personnel. Complications with the payload, atmospheric conditions, or operational setbacks can all contribute to launch postponements. While these delays can be disheartening, they are imperative to prioritize safety and mission success over rigid scheduling.
In this instance, the launch was delayed due to an upper wind-related weather condition. The new launch date and time will be disclosed once confirmed.
The X-Ray Imaging and Spectroscopy Mission (XRISM), previously known as XARM, is a collaborative endeavor between JAXA and NASA, with participation from the European Space Agency (ESA). The mission’s aim is to explore celestial X-ray entities in the Universe using high-throughput imaging and high-resolution spectroscopy.
The XRISM payload features two main instruments:
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Resolve, a soft X-ray spectrometer, which pairs a lightweight X-ray Mirror Assembly (XMA) with an X-ray calorimeter spectrometer. It provides non-dispersive energy resolution of 5-7 eV within the 0.3-12 keV energy range, encompassing a field of view of about 3 arcmin.
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Xtend, a soft X-ray imager, consists of four CCD detectors that extend the observatory’s field to 38 arcmin on each side across the 0.4-13 keV energy range. This is accomplished using an identical lightweight X-ray Mirror Assembly.
XRISM stands as a testament to global collaboration, with NASA’s Goddard Space Flight Center playing a pivotal role in software development, data processing, and the Guest Observer Facility. The mission’s instruments, Resolve and Xtend, both utilize X-ray Mirror Assemblies developed at Goddard, promising a comprehensive comprehension of the X-ray universe.
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Frequently Asked Questions (FAQs) about Launch Postponement
What led to the postponement of the XRISM launch on August 28, 2023?
The XRISM launch was postponed due to unsuitable upper wind conditions, which didn’t meet the launch requirements. This decision ensures safety.
What does it mean when a launch is “scrubbed” by a space agency?
When a space agency like NASA or JAXA “scrubs” a launch, it means they have decided to either cancel or delay a scheduled rocket launch. This can result from various factors like weather, technical issues, or safety concerns.
What factors can lead to launch postponements?
Launch postponements can occur due to adverse weather conditions (such as high winds or lightning), technical malfunctions in the rocket or spacecraft, safety concerns, payload issues, atmospheric conditions, or operational setbacks. These delays prioritize mission success and safety.
What is the objective of the XRISM mission?
The objective of the XRISM mission is to investigate celestial X-ray objects in the Universe using high-throughput imaging and high-resolution spectroscopy. It aims to provide a deeper understanding of energetic objects in space.
What are the principal instruments of the XRISM payload?
The XRISM payload consists of two main instruments:
- Resolve, a soft X-ray spectrometer, which combines a lightweight X-ray Mirror Assembly (XMA) with an X-ray calorimeter spectrometer, offering high energy resolution.
- Xtend, a soft X-ray imager, comprising four CCD detectors, extending the observatory’s field of view over a wide energy range.
How does XRISM demonstrate international collaboration?
XRISM is a collaborative effort between JAXA, NASA, and ESA. NASA’s Goddard Space Flight Center contributes to software development, data processing, and the Guest Observer Facility. The instruments Resolve and Xtend utilize X-ray Mirror Assemblies developed at Goddard, showcasing global teamwork.
More about Launch Postponement
- X-Ray Imaging and Spectroscopy Mission (XRISM) – JAXA
- Japan Aerospace Exploration Agency (JAXA)
- NASA – National Aeronautics and Space Administration
- European Space Agency (ESA)
- H-IIA Launch Vehicle – JAXA
- NASA’s Goddard Space Flight Center
