diff --git a/app/routes/missions.svom/logo_svom_black.svg b/app/routes/missions.svom/logo_svom_black.svg new file mode 100644 index 000000000..bb66416b2 --- /dev/null +++ b/app/routes/missions.svom/logo_svom_black.svg @@ -0,0 +1,59 @@ + + + + + + + + + + + + + + diff --git a/app/routes/missions.svom/route.mdx b/app/routes/missions.svom/route.mdx new file mode 100644 index 000000000..924ce1a82 --- /dev/null +++ b/app/routes/missions.svom/route.mdx @@ -0,0 +1,354 @@ +--- +handle: + breadcrumb: SVOM +--- + +import logo from './logo_svom_black.svg' + +# Space-based multi-band astronomical Variable Objects Monitor (SVOM) + +SVOM logo + +**Launch Date:** June 22, 2024 + +**Anticipated Start of Science Operations:** February 2025 + +**End of Operations:** Mission duration of 3 years + +**Notices Archive:** [SVOM French Science Center](https://fsc.svom.org/alerts) + +The [Space-based multi-band astronomical Variable Objects Monitor (SVOM)](https://www.svom.eu/en/the-svom-mission/) is a French-Chinese mission, result of a collaboration between the two national space agencies, [China National Space Administration (CNSA)](https://www.cnsa.gov.cn/english/index.html) and [Centre national d'études spatiales (CNES)](https://cnes.fr/en/projects/svom). SVOM is dedicated to the study of the most powerful transient phenomena, with a particular emphasis on gamma-ray bursts (GRBs). + +The SVOM spacecraft carries four multi-wavelength instruments: ECLAIRs, Gamma Ray burst Monitor (GRM), Microchannel X-ray Telescope (MXT) and Visual Telescope (VT). ECLAIRs and GRM can detect gamma-ray transient sources in real-time with localisation capabilities for ECLAIRs. SVOM can transfer the alerts in near real-time with a typical latency of less than 30s and perform autonomous slew to allow x-ray and optical follow-up of the source with the smaller field of view instruments: MXT and VT. + +
+ +| Instruments | Energy Range | Field of View | Localization | +| ----------- | ------------------------------------------------------ | ------------- | ------------------------------------------ | +| ECLAIRs | 4 - 250 keV | 2 ster | ~10ʹ radius (statistical + systematic) | +| GRM | 15 - 5000 keV | 2.6 ster | ~10 degrees | +| MXT | 0.2 - 10 keV | 1.1° x 1.1° | ~10-100ʺ radius (statistical + systematic) | +| VT | 450 - 650 nm (Blue band)
650 - 1000 nm (Red band) | 26ʹ x 26' | ~1ʺ radius | + +
+ +#### GCN Kafka topics + +SVOM distributes alerts and localizations of gamma-ray burst and other transients. For now, these notices are published only in VOEvent format through the GCN Kafka topics prefixed `gcn.notices.svom.voevent`. + +Each of the four instruments has its own dedicated topic to stream notices with their related information. See table below: + +
+ +| Kafka topic | Notice types | +| ---------------------------------- | ----------------------------------------------------------------------- | +| `gcn.notices.svom.voevent.grm` | `grm-trigger` | +| `gcn.notices.svom.voevent.eclairs` | `eclairs-wakeup`
`eclairs-catalog`
`slewing` / `not-slewing` | +| `gcn.notices.svom.voevent.mxt` | `mxt-initial`
`mxt-update` | +| `gcn.notices.svom.voevent.vt` | Available soon | + +
+ +#### VOEvent XML-serialized GCN notice types + +
+ +| Notice Type | Content | Latency | +| ------------------------------------------ | -------------------------------------------------------------------- | ------------- | +| `grm-trigger` | GRM trigger notice with possible rough localization | ~15 sec | +| `eclairs-wakeup` | ECLAIRs localisation of a GRB candidate | ~15 sec | +| `eclairs-catalog` | ECLAIRs localisation of a flaring source from the on-board catalogue | ~15 sec | +| `slewing` /
`not-slewing` 1 | Platform slew status and target coordinates | ~1-8 min | +| 
`mxt-initial_qf#`2
| MXT localisation of a found counterpart (only if platform slews) | ~3 min | +| 
`mxt-update_qf#`2
| MXT updated localisation (qf > mxt-initial_qf) | ~3 min | + +
+ +1 `not-slewing`are published either if the detection did not reach +the slew threshold (in a maximum time window of 8 min) or if the slew was not +possible. The reason is specified in the notice parameters. + +2 the value of the quality factor `qf` indicates the accuracy +of the localisation: + - `qf1`→ 120'' < R90 < 300''
+ - `qf2`→ 60'' < R90 < 120''
+ - `qf3`→ 30'' < R90 < 60''
+ - `qf4`→ R90 < 30''
+ +#### VOEvent examples + +The complete list of published notices can be found [here](https://fsc.svom.org/alerts). Here are 3 different examples of SVOM VOEvent notices: + +
+ `eclairs-wakeup` + ```xml + + + + ivo://org.svom/FSC + + SVOM French Science Center + FSC + Timothe Roland + svom-contact@cea.fr + + 2022-04-04T11:54:42 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + RA + Dec + + 50.4488 + 10.0041 + + 0.2 + + + + + + + + process.variation.burst;em.gamma + + + + N1e notice, data from ECLAIRs instrument + + + + ``` +
+
+ +
+ `grm-trigger` + ```xml + + + + ivo://org.svom/FSC + 2025-02-07T07:14:22 + + SVOM French Science Center + FSC + Timothe Roland + svom-contact@cea.fr + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + process.variation.burst;em.gamma + + + + N1g notice, data from GRM + + + +``` + +
+
+ +
+ `mxt-initial_qf1` + ```xml + + + + ivo://org.svom/FSC + 2025-02-05T21:41:59 + + SVOM French Science Center + FSC + Timothe Roland + svom-contact@cea.fr + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + RA + Dec + + 113.4980 + 32.3892 + + 0.0356 + + + + + + + + process.variation.burst;em.gamma + + + + N2m notice, data from MXT + + + + ivo://org.svom/fsc#sb25020504_eclairs-refined + ivo://org.svom/fsc#sb25020504_slewing + + + ``` +
+ +#### Yearly Trigger Rates + +
+ +| Instrument | Type | Yearly Rates | +| ---------- | ---- | ------------ | +| ECLAIRs | GRBs | 60 GRBs/yr | +| GRM | GRBs | 130 GRBs/yr | + +
diff --git a/app/routes/missions.tsx b/app/routes/missions.tsx index c875dcc42..d54477c79 100644 --- a/app/routes/missions.tsx +++ b/app/routes/missions.tsx @@ -82,6 +82,11 @@ export default function () { Super-Kamiokande , + useFeature('SVOM') && ( + + SVOM + + ), ]} />