CUTE-1.7 + APD II
{{Short description|Follow up to CUTE-1.7 + APD nanosatellite}}
{{Use American English|date=September 2021}}
{{Use dmy dates|date=September 2021}}
{{Infobox spaceflight
| name = CUTE-1.7 + APD II
| names_list = CUTE-1.7 + APD 2
| image =
| image_caption =
| image_size = 300px
| mission_type = Technology
| operator = Tokyo Institute of Technology
| COSPAR_ID = 2008-021C
| SATCAT = 32785
| website = https://lss.mes.titech.ac.jp/ssp/cute1.7/index_e.html
| mission_duration = Elasped: {{time interval|28 April 2008 03:53:51}}
| spacecraft_bus =
| manufacturer = Tokyo Institute of Technology
| launch_mass = {{cvt|3|kg}}
| dimensions = {{cvt|20|xx|15|xx|10|cm}}
| power =
| launch_date = 28 April 2008, 03:53:51 UTC
| launch_rocket = PSLV-CA (PSLV-C9)
| launch_site = Satish Dhawan, FLP
| launch_contractor = Indian Space Research Organisation
| entered_service =
| last_contact =
| decay_date =
| orbit_reference = Geocentric orbit
| orbit_regime = Low Earth orbit
| orbit_periapsis = {{cvt|606|km}}
| orbit_apoapsis = {{cvt|626|km}}
| orbit_inclination = 97.67°
| orbit_period = 96.89 minutes
| apsis = gee
}}
CUTE-1.7 + APD II, or CUTE-1.7 + APD 2, is a Japanese nanosatellite which was launched in 2008 as a follow-up to the CUTE-1.7 + APD satellite. It was built and is operated by the Tokyo Institute of Technology.
Spacecraft
CUTE-1.7 + APD II used a similar design to its predecessor, however it was stretched in height meaning that it no longer complied with the CubeSat form factor which the original satellite was based on. It has dimensions of {{cvt|20|xx|15|xx|10|cm}},{{cite web|url=http://space.skyrocket.de/doc_sdat/cute-1-7-apd-2.htm|title=CUTE 1.7 + APD 2|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=25 October 2013}} compared to {{cvt|20|xx|10|xx|10|cm}} for CUTE-1.7 + APD, which was a standard two-unit CubeSat.{{cite web|url=http://space.skyrocket.de/doc_sdat/cute-1-7.htm|title=CUTE 1.7 + APD |publisher=Gunter's Space Page|access-date=25 October 2013}} The onboard computer is a personal digital assistant developed by Hitachi.
Mission
The University of Toronto Institute for Aerospace Studies was contracted to launch CUTE-1.7 + APD II, subcontracting the launch to the Indian Space Research Organisation (ISRO) as part of the Nanosatellite Launch Service 4 (NLS-4) mission along with CanX-2, AAUSAT-II, Compass-1, Delfi-C3 and SEEDS-2.{{cite web|url=http://www.utias-sfl.net/NLS-4/|title=Nanosatellite Launch Service 4|publisher=University of Toronto Institute for Aerospace Studies|access-date=25 October 2013|date=14 May 2008|archive-date=5 April 2008|archive-url=https://web.archive.org/web/20080405072859/http://www.utias-sfl.net/NLS-4/|url-status=dead}} ISRO used a Polar Satellite Launch Vehicle, flight number C9, to launch NLS-4 - with the rocket flying in the Core Alone, or PSLV-CA, configuration.{{cite web|url=http://www.isro.org/pslv-c9/PSLV-C9.aspx|title=PSLV-C9|publisher=Indian Space Research Organisation|access-date=25 October 2013|archive-url=https://web.archive.org/web/20130818190650/http://isro.org/pslv-c9/PSLV-C9.aspx|archive-date=18 August 2013|url-status=dead}} The rocket's primary payload was Cartosat-2A, with IMS-1, Rubin-8 and the University of Toronto's NLS-5 mission - consisting of the CanX-6 satellite - also flying aboard the launch vehicle as secondary payloads.{{cite web|url=https://planet4589.org/space/jsr/back/news.596.txt|title=JSR 596|first=Jonathan|last=McDowell|publisher=Jonathan's Space Report |date=27 May 2008|access-date=28 September 2021}}
Launch
The launch took place at 03:53:51 UTC on 28 April 2008, with the satellites being deployed from the launch vehicle shortly afterwards.{{cite web |url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowell|publisher=Jonathan's Space Report|access-date=25 October 2013}} As of {{Orbit|epoch|24 January 2015}}, CUTE-1.7 + APD II is in a {{cvt|606|km}} of apogee and {{cvt|626|km}} orbit inclined at inclination 97.67° to the equator.{{cite web |url=http://www.n2yo.com/satellite/?s=32785|title=CUTE-1.7+APD II 2008-021C NORAD 32785|publisher=N2YO.com|access-date=25 January 2015}} Although only designed for a two-month mission, it still remains operational and continues to transmit data to the ground station at the Tokyo Institute of Technology.{{cite web|url=http://lss.mes.titech.ac.jp/ssp/cute1.7/blog/|title=10月のアマチュアサービス開放スケジュール(Amateur Services Open Schedule in October)|work=Cute-1.7 + APD II Project Weblog|publisher=Tokyo Institute of Technology|date=29 September 2013|access-date=25 October 2013}}