| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/44N8JFH | |||
| Repository | sid.inpe.br/mtc-m21c/2021/05.20.17.49 | |||
| Last Update | 2021:05.20.17.49.21 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2021/05.20.17.49.21 | |||
| Metadata Last Update | 2022:04.03.19.24.43 (UTC) administrator | |||
| DOI | 10.5194/angeo-39-397-2021 | |||
| ISSN | 0992-7689 | |||
| Citation Key | NwankwoDCAFARCEA:2021:AtDrEf | |||
| Title | Atmospheric drag effects on modelled low Earth orbit (LEO) satellites during the July 2000 Bastille Day event in contrast to an interval of geomagnetically quiet conditions  | |||
| Year | 2021 | |||
| Month | May | |||
| Access Date | 2024, May 16 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 3230 KiB | |||
| 2. Context | ||||
| Author | 1 Nwankwo, Victor U. J. 2 Denig, William 3 Chakrabarti, Sandip K. 4 Ajakaiye, Muyiwa P. 5 Fatokun, Johnson 6 Akanni, Adeniyi W. 7 Raulin, Jean Pierre 8 Correia, Emilia 9 Enoh, John E. 10 Anekwe, Paul I. | |||
| Resume Identifier | 1 2 3 4 5 6 7 8 8JMKD3MGP5W/3C9JH2C | |||
| Group | 1 2 3 4 5 6 7 8 DICEP-CGCE-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Anchor University 2 St. Joseph’s College of Maine 3 Indian Centre for Space Physics 4 Anchor University 5 Anchor University 6 Anchor University 7 Universidade Presbiteriana Mackenzie 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Interorbital systems 10 Anchor University | |||
| Author e-Mail Address | 1 2 3 4 5 6 7 8 emilia.correia@inpe.br | |||
| Journal | Annales Geophysicae | |||
| Volume | 39 | |||
| Number | 3 | |||
| Pages | 397-412 | |||
| Secondary Mark | A2_INTERDISCIPLINAR A2_GEOCIÊNCIAS A2_ENGENHARIAS_I B2_CIÊNCIAS_BIOLÓGICAS_I B2_ASTRONOMIA_/_FÍSICA | |||
| History (UTC) | 2021-05-20 17:49:21 :: simone -> administrator :: 2021-05-20 17:49:23 :: administrator -> simone :: 2021 2021-05-20 17:51:19 :: simone -> administrator :: 2021 2022-04-03 19:24:43 :: administrator -> simone :: 2021 | |||
| 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 | |||
| Abstract | In this work, we simulated the atmospheric drag effect on two model SmallSats (small satellites) in low Earth orbit (LEO) with different ballistic coefficients during 1-month intervals of solar-geomagnetic quiet and perturbed conditions. The goal of this effort was to quantify how solar-geomagnetic activity influences atmospheric drag and perturbs satellite orbits, with particular emphasis on the Bastille Day event. Atmospheric drag compromises satellite operations due to increased ephemeris errors, attitude positional uncertainties and premature satellite re-entry. During a 1-month interval of generally quiescent solar-geomagnetic activity (July 2006), the decay in altitude (h) was a modest 0.53 km (0.66 km) for the satellite with the smaller (larger) ballistic coefficient of 2.2×10-3 m2 kg-1 (3.03×10-3 m2 kg-1). The associated orbital decay rates (ODRs) during this quiet interval ranged from 13 to 23m per day (from 16 to 29m per day). For the disturbed interval of July 2000 the significantly increased altitude loss and range of ODRs were 2.77 km (3.09 km) and 65 to 120m per day (78 to 142m per day), respectively. Within the two periods, more detailed analyses over 12 d intervals of extremely quiet and disturbed conditions revealed respective orbital decays of 0.16 km (0.20 km) and 1.14 km (1.27 km) for the satellite with the smaller (larger) ballistic coefficient. In essence, the model results show that there was a 6- to 7-fold increase in the deleterious impacts of satellite drag between the quiet and disturbed periods. We also estimated the enhanced atmospheric drag effect on the satellites' parameters caused by the July 2000 Bastille Day event (in contrast to the interval of geomagnetically quiet conditions). The additional percentage increase, due to the Bastille Day event, to the monthly mean values of h and ODR are 34.69%and 50.13% for Sat-A and 36.45% and 68.95% for Sat-B. These simulations confirmed (i) the dependence of atmospheric drag force on a satellite's ballistic coefficient, and (ii) that increased solar-geomagnetic activity substantially raises the degrading effect of satellite drag. In addition, the results indicate that the impact of short-duration geomagnetic transients (such as the Bastille Day storm) can have a further deleterious effect on normal satellite operations. Thus, this work increases the visibility and contributes to the scientific knowledge surrounding the Bastille Day event and also motivates the introduction of new indices used to describe and estimate the atmospheric drag effect when comparing regimes of varying solar-geomagnetic activity.We suggest that a model of satellite drag, when combined with a high-fidelity atmospheric specification as was done here, can lead to improved satellite ephemeris estimates. | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Atmospheric drag effects... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34R/44N8JFH | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34R/44N8JFH | |||
| Target File | angeo-39-397-2021.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KTFK8 | |||
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label language lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||