| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP3W/3HG7CLM |
| Repository | sid.inpe.br/plutao/2014/12.01.12.07.58 |
| Last Update | 2014:12.09.14.39.34 (UTC) administrator |
| Metadata Repository | sid.inpe.br/plutao/2014/12.01.12.07.59 |
| Metadata Last Update | 2021:02.11.18.16.34 (UTC) administrator |
| Label | lattes: 0288494962313241 1 CarraraKugaBrin:2014:AtDeCo |
| Citation Key | CarraraKugaBrinCarv:2014:AtDeCo |
| Title | Attitude Determination, Control and Operating Modes for CONASAT Cubesats  |
| Format | DVD |
| Year | 2014 |
| Access Date | 2024, May 18 |
| Secondary Type | PRE CI |
| Number of Files | 1 |
| Size | 396 KiB |
| 2. Context | |
| Author | 1 Carrara, Valdemir 2 Kuga, Hélio Koiti 3 Bringhenti, Philipe Massad 4 Carvalho, Manoel J. M. de |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JJAN 2 8JMKD3MGP5W/3C9JHC9 |
| Group | 1 DMC-ETE-INPE-MCTI-GOV-BR 2 DMC-ETE-INPE-MCTI-GOV-BR 3 CMC-ETES-SPG-INPE-MCTI-GOV-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Author e-Mail Address | 1 valdemir.carrara@inpe.br 2 helio.kuga@inpe.br 3 philipemassad@hotmail.com 4 manoel@crn.inpe.br |
| e-Mail Address | marcelo.pazos@inpe.br |
| Conference Name | International Symposium on Space Flight Dynamics, 24 (ISSFD). |
| Conference Location | Laurel |
| Date | 2014 |
| Book Title | Proceedings |
| Tertiary Type | Paper |
| History (UTC) | 2014-12-01 12:07:59 :: lattes -> administrator :: 2021-02-11 18:16:34 :: administrator -> marcelo.pazos@inpe.br :: 2014 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | CubeSat Attitude determination Attitude control |
| Abstract | CONASAT is being designed to gather environmental data like rain volume, temperature, humidity, air pollution, ocean streams, environmental hazards, etc. collected and transmitted to satellite by remote platforms on ground, and to retransmit them to the mission center. At least two identical satellites shall be launched, and, together with their antecessors SCD1 and SCD2 (Data Collecting Satellites 1 and 2, from Brazil) launched in 1993 and 1998, respectively, and still operating, they will provide large temporal resolution for environmental monitoring. In order to keep the costs low, CONASAT shall be based on CubeSat technologies. However, the large power required by onboard data transponder implied an arrangement of 8 CubeSat units in a single cubic one, with 230 mm size. All internal subsystems shall be duplicated in cold redundancy, in order to assure the reliability. In addition, in order to fulfill the power requirements, the attitude shall be Earth pointed, since the payload antenna will face to ground. Although there is no restraint in pointing requirements, a set of 3 off the shelf reaction wheels will be employed so as to assure satellite maneuverability and attitude stabilization. Attitude determination will rely in a set of 6 coarse sun sensors (one in each cube face) and a tri-axes magnetometer. QUEST or TRIAD algorithm together with Kalman filter will provide onboard attitude determination and estimation whereas attitude control will be based on a conventional PID, acting on the reaction wheels, and three magnetic coils necessary for wheels de-saturation. Onboard software reliability is assured by minimizing the number of operating modes. Besides the nominal and stand-by modes (for Earth pointing and station keeping, respectively), the attitude acquisition mode and the safe mode for attitude de-tumbling shall be accomplish by means exclusively of the magnetometer (Bdot algorithm), course solar sensors and the torque coils. Since there is no complete attitude determination on the shadowed part of the orbit, the nominal mode is achieved only after Kalman filter convergence. This work will present the attitude control modes for CONASAT, as well as the transition conditions between modes. The results from the simulated attitude determination, estimation and control will be addressed, with focus on the attitude performance for both nominal and safe modes. This work shall constitute a base line that will guide the on-board control software development, integration, and qualification tests. |
| Area | ETES |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CMC > Attitude Determination, Control... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMC > Attitude Determination, Control... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/8JMKD3MGP3W/3HG7CLM |
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W/3HG7CLM |
| Language | en |
| Target File | ISSFD24_Paper_S1-4_carrara.pdf |
| User Group | lattes marcelo.pazos@inpe.br |
| Reader Group | administrator marcelo.pazos@inpe.br |
| Visibility | shown |
| Read Permission | allow from all |
| Update Permission | not transferred |
| 5. Allied materials | |
| Mirror Repository | iconet.com.br/banon/2006/11.26.21.31 |
| Next Higher Units | 8JMKD3MGPCW/3F2UALS 8JMKD3MGPCW/446AF4B |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.49.46 1 |
| URL (untrusted data) | https://dnnpro.outer.jhuapl.edu/issfd2014/Agenda.aspx |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Notes | Setores de Atividade: Pesquisa e desenvolvimento científico. |
| Empty Fields | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi edition editor isbn issn lineage mark nextedition numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarymark type volume |
| 7. Description control | |
| e-Mail (login) | marcelo.pazos@inpe.br |
| update | |