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{{short description|Nanosatellite}}

{{Infobox spaceflight
{{Infobox spaceflight
| name = Cosmic X-ray Background Nanosatellite-2
| name = Cosmic X-ray Background Nanosatellite-2
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<!--image of the spacecraft/mission-->
<!--image of the spacecraft/mission-->
| image = NanoRacks_CubeSat_deployer_deploying_CXBN-2_and_IceCube.jpg
| image = NanoRacks_CubeSat_deployer_deploying_CXBN-2_and_IceCube.jpg
| image_caption = CXBN-2 being deployed from the International Space Station with [[IceCube (spacecraft)|IceCube]]
| image_caption = Deployment of CXBN-2 with [[IceCube (spacecraft)|IceCube]]
| image_alt = CXBN-2 deployment from the International Space Station
| image_alt = CXBN-2 deployment from the International Space Station


<!--Basic details-->
<!--Basic details-->
| mission_type = Astronomy
| mission_type = [[X-ray astronomy]]
| operator = [[Morehead State University]]
| operator = [[Morehead State University]]
| COSPAR_ID = 1998-067LM<ref>{{Cite web|title=CXBN 1, 2 (Unbridled Spirit)|url=https://space.skyrocket.de/doc_sdat/cxbn.htm|access-date=2021-12-04|website=Gunter's Space Page|language=en}}</ref>
| COSPAR_ID = 1998-067LM<ref>{{Cite web|title=CXBN 1, 2 (Unbridled Spirit)|url=https://space.skyrocket.de/doc_sdat/cxbn.htm|access-date=2021-12-04|website=Gunter's Space Page|language=en}}</ref>
| SATCAT = 42704<ref>{{Cite web|title=Technical details for satellite CXBN-2|url=https://www.n2yo.com//satellite/?s=42704|access-date=2021-12-06|website=N2YO.com - Real Time Satellite Tracking and Predictions}}</ref>
| mission_duration = {{time interval|May 16, 2017|March 1, 2019|show=ymd}}
| website = [https://www.moreheadstate.edu/college-of-science/earth-and-space-sciences/space-science-center/space-missions/cxbn-2 CXBN-2]
| website = [https://www.moreheadstate.edu/college-of-science/earth-and-space-sciences/space-science-center/space-missions/cxbn-2 CXBN-2]


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| spacecraft = CXBN-2
| spacecraft = CXBN-2
| spacecraft_type = 2U [[CubeSat]]
| spacecraft_type = 2U [[CubeSat]]
| spacecraft_bus = [[Atlas V|ULA Atlas-5 401 ]]
| manufacturer = [[Morehead State University]]
| manufacturer = [[Morehead State University]]
| dry_mass = 2.8kg
| dry_mass = 2.8kg
| dimensions = 10 x 10 x 20 cm
| dimensions = 10 x 10 x 20 cm
| power = 15W
| power = 15[[Watt|W]]


<!--Launch details-->
<!--Launch details-->
| launch_date = {{start-date|2017|04|18}} [[UTC]]
| launch_date = {{start date|2017|04|18}}
| launch_rocket = [[Atlas V|ULA Atlas-5 401]]
| launch_rocket = [[Atlas V|ULA Atlas-5 401]]
| launch_site = [[Cape Canaveral Space Launch Complex 41]]
| launch_site = [[Cape Canaveral Space Launch Complex 41]]
| launch_contractor = [[United Launch Alliance]]
| launch_contractor = [[United Launch Alliance]] via [[Educational Launch of Nanosatellites|ELaNa]]
| deployment_from = [[International Space Station]]
| deployment_from = [[International Space Station]]
| deployment_date = May 16-17, 2017
| deployment_date = {{start date|2017|05|16}}


<!--end of mission-->
<!--end of mission-->
| disposal_type = Re-entry
| disposal_type = Re-entry
| last_contact = {{start-date|2019|03|01}}<ref name="nanosat database">{{Cite web|last=Kulu|first=Erik|title=CXBN 2 @ Nanosats Database|url=https://www.nanosats.eu/sat/cxbn-2.html|access-date=2021-12-04|website=Nanosats Database|language=en}}</ref>
| last_contact = {{start date|2019|03|01}}<ref name="nanosats">{{Cite web|last=Kulu|first=Erik|title=CXBN 2 @ Nanosats Database|url=https://www.nanosats.eu/sat/cxbn-2.html|access-date=2021-12-04|website=Nanosats Database|language=en}}</ref>
| decay_date = {{start-date|2019|03|01}}
| decay_date = {{start date|2019|03|01}}


<!--orbit parameters-->
<!--orbit parameters-->
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| orbit_reference = [[Geocentric orbit|Geocentric]]
| orbit_reference = [[Geocentric orbit|Geocentric]]
| orbit_regime = [[Low Earth orbit|Low Earth]]
| orbit_regime = [[Low Earth orbit|Low Earth]]
| orbit_altitude = ~400km<ref name="eoportal">{{Cite web|title=CXBN-2 {{!}} Satellite Directory {{!}} eoPortal|url=https://directory.eoportal.org/web/eoportal/satellite-missions/c-missions/cxbn-2|access-date=2021-12-04|website=directory.eoportal.org}}</ref>
| orbit_altitude = ~{{convert|400|km}}<ref name="eoportal">{{Cite web|title=CXBN-2 {{!}} Satellite Directory {{!}} eoPortal|url=https://directory.eoportal.org/web/eoportal/satellite-missions/c-missions/cxbn-2|access-date=2021-12-04|website=directory.eoportal.org}}</ref>
| orbit_inclination = 51.6°<ref name="eoportal" />
| orbit_inclination = 51.6°<ref name="eoportal" />


<!--Telescope parameters-->
<!--Telescope parameters-->
| instruments = Cadmium Zinc Telluride Array, magnetometer
| instruments = Cadmium Zinc Telluride (CZT) detector, magnetometer

<!--transponder parameters-->
| trans_band = [[Ultra high frequency|UHF]], [[S band]]


<!--Only use where a spacecraft/mission is part of a clear programme of sequential missions.
<!--Only use where a spacecraft/mission is part of a clear programme of sequential missions.
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}}
}}


'''Cosmic X-ray Background Nanosatellite-2''' ('''CXBN-2''' or '''CXBN 2''') was a satellite and mission developed by the [[Morehead State University]] to follow up on the [[CXBN]] mission launched in 2012. It is an improved version of the previous spacecraft and it increases the precision of measurements of the [[X-ray background|cosmic x-ray background]] in the 30-50 [[keV]] range and helped to improve understanding of the early universe.<ref name="morehead">{{Cite web|title=Morehead State University :: Space Missions - CXBN-2|url=https://www.moreheadstate.edu/college-of-science/earth-and-space-sciences/space-science-center/space-missions/cxbn-2|url-status=live|access-date=2021-12-04|website=[[Morehead State University]]}}</ref>
'''Cosmic X-ray Background Nanosatellite-2''' ('''CXBN-2''' or '''CXBN 2''') was a satellite and mission developed by the [[Morehead State University]] to follow up on the [[CXBN]] mission launched in 2012. It was an improved version of the previous spacecraft and it increased the precision of measurements of the [[X-ray background|cosmic X-ray background]] in the 30-50 [[keV]] range and helped to improve understanding of the early universe.<ref name="morehead">{{Cite web|title=Morehead State University :: Space Missions - CXBN-2|url=https://www.moreheadstate.edu/college-of-science/earth-and-space-sciences/space-science-center/space-missions/cxbn-2|url-status=live|access-date=2021-12-04|website=[[Morehead State University]]|archive-url=https://web.archive.org/web/20170404194406/http://www.moreheadstate.edu/College-of-Science/Earth-and-Space-Sciences/Space-Science-Center/Space-Missions/CXBN-2 |archive-date=2017-04-04 }}</ref><ref name="phys">{{Cite web|last=Astrowatch.net|title=CXBN-2 CubeSat to embark on an important X-ray astronomy mission|url=https://phys.org/news/2017-03-cxbn-cubesat-embark-important-x-ray.html|access-date=2021-12-04|website=phys.org|language=en}}</ref>


== Objectives ==
== Objectives ==
The CXBN-2 mission was created in order to map the extragalactic cosmic X-ray background with the use of a Cadmium Zinc Telluride (CZT) detector. Compared to its predecessor, its CZT detector had twice the detection area. It allowed for a new, high-precision measurement of the X-ray background.<ref name="eoportal" /> It helped improve understanding of the origin and evolution of the universe through research on high-energy background radiation. It collected 3 million seconds of data throughout its lifetime.<ref name="morehead" />


== Design ==
== Design ==
The CXBN-2 satellite was a Sun-pointing [[Spin-stabilisation|spin-stabilized]] 2U [[CubeSat]] which had four solar panels which provided 15W of power. It had a 2-wall structure and braces to reinforce its body. When it was in its compact form, it occupied a volume of 10 x 10 x 20cm.

It had two transceivers in the [[Ultra high frequency]] and [[S band]]s for radio communication.<ref name="eoportal" />


== Instruments ==
== Instruments ==
CXBN-2 contained a Cadmium Zinc Telluride Array as its X-ray detector and a magnetometer on board.<ref name="eoportal" />


== Launch and mission ==
== Launch and mission ==
{{main article|Cygnus OA-7}}
[[File:Launch of Atlas V with Cygnus OA-7 (KSC-20170418-PH AWG02 0020, cropped).jpg|left|thumb|100px|Launch of [[Cygnus OA-7]]]]
[[Cygnus OA-7]] launched on April 18, 2017 as the eighth flight of the [[Cygnus (spacecraft)|Cygnus]] Orbital ATK uncrewed orbital spacecraft and its seventh flight to the International Space Station (ISS) under NASA's [[Commercial Resupply Services]].<ref>{{Cite web|title=Launch Log (2017-2018) – Spaceflight Now|url=https://spaceflightnow.com/launch-log-2017-2018/|access-date=2021-12-05|language=en-US}}</ref> On April 22, 2017, the Cygnus spacecraft docked with the ISS.<ref>{{Cite web|date=2017-04-22|title=S.S. John Glenn OA-7 Cygnus berthed to ISS|url=https://www.spaceflightinsider.com/missions/iss/s-s-john-glenn-oa-7-cygnus-berthed-to-iss/|access-date=2021-12-05|website=SpaceFlight Insider|language=en-US}}</ref>


On May 16, 2017, the CXBN-2 satellite was deployed from the ISS via the [[Nanoracks CubeSat Deployer]] along with several other CubeSats.<ref>{{Cite web|date=2017-05-17|title=CubeSat Deployer Mission 11 Status Update: Good Deploy!|url=https://nanoracks.com/cubesat-deployer-mission-11-update/|access-date=2021-12-05|website=Nanoracks|language=en-US}}</ref> On March 1, 2019, it re-entered the Earth's atmosphere.<ref name="nanosats" />
⚫
== References ==
⚫
{{reflist}}
*https://phys.org/news/2017-03-cxbn-cubesat-embark-important-x-ray.html


== External links ==


⚫
[[Category:Satellites deployed from the International Space Station]]


⚫
[[:Categoty:CubeSats]]


⚫
[[:Category:2017 in spaceflight]]



⚫
[[:Category:Morehead State University]]
⚫
== References ==
⚫
{{reflist}}

{{Space observatories}}
{{orbital launches in 2017}}
{{Morehead State University}}

⚫
[[Category:2017 in spaceflight]]
⚫
[[Category:Satellites deployed from the International Space Station]]
⚫
[[Category:CubeSats]]
⚫
[[Category:Morehead State University]]

Latest revision as of 20:18, 15 October 2024

Cosmic X-ray Background Nanosatellite-2
CXBN-2 deployment from the International Space Station
Deployment of CXBN-2 with IceCube
Mission typeX-ray astronomy
OperatorMorehead State University
COSPAR ID1998-067LM[1]
SATCAT no.42704[2]
WebsiteCXBN-2
Mission duration1 year, 9 months and 13 days
Spacecraft properties
SpacecraftCXBN-2
Spacecraft type2U CubeSat
ManufacturerMorehead State University
Dry mass2.8kg
Dimensions10 x 10 x 20 cm
Power15W
Start of mission
Launch dateApril 18, 2017 (2017-04-18)
RocketULA Atlas-5 401
Launch siteCape Canaveral Space Launch Complex 41
ContractorUnited Launch Alliance via ELaNa
Deployed fromInternational Space Station
Deployment dateMay 16, 2017 (2017-05-16)
End of mission
DisposalRe-entry
Last contactMarch 1, 2019 (2019-03-01)[3]
Decay dateMarch 1, 2019 (2019-03-01)
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Altitude~400 kilometres (250 mi)[4]
Inclination51.6°[4]
Transponders
BandUHF, S band
Instruments
Cadmium Zinc Telluride (CZT) detector, magnetometer
← CXBN

Cosmic X-ray Background Nanosatellite-2 (CXBN-2 or CXBN 2) was a satellite and mission developed by the Morehead State University to follow up on the CXBN mission launched in 2012. It was an improved version of the previous spacecraft and it increased the precision of measurements of the cosmic X-ray background in the 30-50 keV range and helped to improve understanding of the early universe.[5][6]

Objectives

[edit]

The CXBN-2 mission was created in order to map the extragalactic cosmic X-ray background with the use of a Cadmium Zinc Telluride (CZT) detector. Compared to its predecessor, its CZT detector had twice the detection area. It allowed for a new, high-precision measurement of the X-ray background.[4] It helped improve understanding of the origin and evolution of the universe through research on high-energy background radiation. It collected 3 million seconds of data throughout its lifetime.[5]

Design

[edit]

The CXBN-2 satellite was a Sun-pointing spin-stabilized 2U CubeSat which had four solar panels which provided 15W of power. It had a 2-wall structure and braces to reinforce its body. When it was in its compact form, it occupied a volume of 10 x 10 x 20cm.

It had two transceivers in the Ultra high frequency and S bands for radio communication.[4]

Instruments

[edit]

CXBN-2 contained a Cadmium Zinc Telluride Array as its X-ray detector and a magnetometer on board.[4]

Launch and mission

[edit]
Main article: Cygnus OA-7
Launch of Cygnus OA-7

Cygnus OA-7 launched on April 18, 2017 as the eighth flight of the Cygnus Orbital ATK uncrewed orbital spacecraft and its seventh flight to the International Space Station (ISS) under NASA's Commercial Resupply Services.[7] On April 22, 2017, the Cygnus spacecraft docked with the ISS.[8]

On May 16, 2017, the CXBN-2 satellite was deployed from the ISS via the Nanoracks CubeSat Deployer along with several other CubeSats.[9] On March 1, 2019, it re-entered the Earth's atmosphere.[3]




References

[edit]
  1. ^ "CXBN 1, 2 (Unbridled Spirit)". Gunter's Space Page. Retrieved 2021-12-04.
  2. ^ "Technical details for satellite CXBN-2". N2YO.com - Real Time Satellite Tracking and Predictions. Retrieved 2021-12-06.
  3. ^ a b Kulu, Erik. "CXBN 2 @ Nanosats Database". Nanosats Database. Retrieved 2021-12-04.
  4. ^ a b c d e "CXBN-2 | Satellite Directory | eoPortal". directory.eoportal.org. Retrieved 2021-12-04.
  5. ^ a b "Morehead State University :: Space Missions - CXBN-2". Morehead State University. Archived from the original on 2017-04-04. Retrieved 2021-12-04.
  6. ^ Astrowatch.net. "CXBN-2 CubeSat to embark on an important X-ray astronomy mission". phys.org. Retrieved 2021-12-04.
  7. ^ "Launch Log (2017-2018) – Spaceflight Now". Retrieved 2021-12-05.
  8. ^ "S.S. John Glenn OA-7 Cygnus berthed to ISS". SpaceFlight Insider. 2017-04-22. Retrieved 2021-12-05.
  9. ^ "CubeSat Deployer Mission 11 Status Update: Good Deploy!". Nanoracks. 2017-05-17. Retrieved 2021-12-05.
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