Farewell Green Cube (IO-117) !!

AMSAT-UK Sep.15の記事 より引用

GreenCube (IO-117) Update
The GreenCube satellite, developed by S5LAB, has likely ceased functioning due to radiation damage. After a successful mission that exceeded expectations, the satellite is no longer responding to commands, and its onboard radio is believed to have been compromised by the harsh radiation environment in Medium Earth Orbit (MEO).
Approximately ten days ago, GreenCube experienced a reboot, and telemetry data from the event did not indicate any anomalies. However, the S5LAB team now suspects that the satellite’s radio was damaged, leading to the current communication blackout. MEO is notoriously challenging for satellites due to its high radiation levels, and GreenCube was not the only satellite affected. Several other CubeSats launched alongside it only lasted a few days, making GreenCube’s extended mission duration a remarkable achievement.
Despite ongoing efforts to send commands and reactivate the satellite, the team remains pessimistic about restoring GreenCube’s functionality. The satellite’s survival in the hostile MEO environment is seen as a testament to its robust design, but the likelihood of recovery is slim.
At this time, no successor to GreenCube is planned, primarily due to the infrequency of launch opportunities to MEO. Launches to this orbit are rare, which complicates the prospect of future missions.
In response to the satellite’s success and the interest it generated among radio amateurs, S5LAB has promised to host a webinar in collaboration with AMSAT Italia. The event will provide insights into the GreenCube mission, sharing the challenges and triumphs of the satellite’s journey. This is an opportunity for the amateur radio community to learn more about the satellite’s impact and the technical details behind its impressive mission.
While GreenCube’s operational life may have ended, its contributions to satellite technology and amateur radio will be remembered as a significant milestone.
[Information from Piero I0KPT via Facebooks Greencube Group]

　危篤状態だったGreen Cube (IO-117)の機能停止が、ついに発表になってしまいました。

　昨年の1月の初QSO以来、すっかりはまってしまい、多くの局と交信でき、LoTWもはじめ（AO-40で完成していたが）WAZを受賞、一時今年の２月に運用終了の報が出るも、AMSAT-Italy各位のご尽力で運用延長となり、次ぐ３月にsatellite WAS、そして悲願のSatellite DXCCを完成・受賞することができました。初めてのPOTAにも挑戦しました。世界中に多くの友人ができました。この1年半余り、非常に濃密なハムライフでした。

　世界中のハムを魅了したGreen Cubeを開発・運用されたS5Labには、深甚なる感謝を申し上げます。そして交信してくれた世界中の友人達に感謝します。

　430MHzの小さな八木アンテナ1本で、世界中の人と交信することができる、とても夢のある素晴らしい衛星でした。今、心にぽっかり大きな穴があいています。

　Green Cubeでの自分の交信の記録は以下の通りです。

First QSO 2023-01-13 with JJ3JHP

Last QSO 2024-08-19 with BA1PK/2

Number of QSOs 1194

DXCC 87

VUCC 614

WAZ 27

WAS 50

WAJA 47

ARIGATO ! SAYONARA ! Green Cube !!

　いつかまた次のMEO衛星が打ち上げられること祈念してやみません