Advanced Microsatellite Mission—deep space applications and constraints
One very cost-effective route into orbit is as an Auxiliary Microsatellite on the ASAP-5 structure. All planned flights of the ASAP-5 structure are into GTO. The Advanced Microsatellite Mission study carried out within the ESA General Studies Programme addressed the feasibility of a deep space missi...
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| Published in: | Acta astronautica Vol. 59; no. 8; pp. 817 - 822 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Elsevier Ltd
01-10-2006
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | One very cost-effective route into orbit is as an Auxiliary Microsatellite on the ASAP-5 structure. All planned flights of the ASAP-5 structure are into GTO. The Advanced Microsatellite Mission study carried out within the ESA General Studies Programme addressed the feasibility of a deep space mission starting from this point.
One of the major configuration drivers in the ASAP-5 launch envelope is the available volume. Low-density nondeployable equipment (tanks, star sensor baffles, etc.) becomes design drivers. Optimisation for power and volume has led to an Attitude Control System architecture which is gyro-based (using the latest high-performance MEMS devices) making use of opportunistic calibration by minimally baffled star sensors.
Solar electric propulsion appears the leading candidate for missions requiring large
Δ
V
. There has historically been a quest for ever higher values of
I
sp
for SEP thrusters, but it is shown that a full mission-level trade-off taking into account the restricted power availability on this class of spacecraft often leads to a lower value of
I
sp
in order to minimise operations costs and improve the timeliness of scientific observations.
It is concluded that useful deep space missions can be performed by a spacecraft complying with the ASAP-5 constraints. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
| ISSN: | 0094-5765 1879-2030 |
| DOI: | 10.1016/j.actaastro.2005.07.062 |