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SVOM Mission Page #2637

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59 changes: 59 additions & 0 deletions app/routes/missions.svom/logo_svom_black.svg
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66 changes: 66 additions & 0 deletions app/routes/missions.svom/route.mdx
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---
handle:
breadcrumb: SVOM
---

import logo from './logo_svom_black.svg'

# Space Variable Objects Monitor (SVOM)

<img
src={logo}
align="right"
width="818"
height="780"
alt="SVOM logo"
className="grid-col-6 mobile-lg:grid-col-4 tablet:grid-col-2 desktop:grid-col-3 height-auto"
/>

**Launch Date:** June 22, 2024

**Anticipated Start of Science Operations:** December 2024

**End of Operations:** Mission duration of 3 years

**Data Archive:**
[HEASARC SVOM Archive](https://heasarc.gsfc.nasa.gov/docs/heasarc/missions/svom.html)
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That's a HEASARC mission page, not an archive. Is there another primary archive we could link to? Is the data public?

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@timroland please check this

Comment on lines +25 to +26
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As far as I can tell, there is no archive.

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**Data Archive:**
[HEASARC SVOM Archive](https://heasarc.gsfc.nasa.gov/docs/heasarc/missions/svom.html)


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://irfu.cea.fr/dap/en/Phocea/Vie_des_labos/Ast/ast_technique.php?id_ast=2276). SVOM mission is dedicated to the study of the the most powerful transient phenomena, with a particular emphasis on gamma-ray bursts (GRBs).
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The CNES link was broken. Here is the correct link:

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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://irfu.cea.fr/dap/en/Phocea/Vie_des_labos/Ast/ast_technique.php?id_ast=2276). SVOM mission is dedicated to the study of the the most powerful transient phenomena, with a particular emphasis on gamma-ray bursts (GRBs).
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/projets/svom). SVOM mission is dedicated to the study of the 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 for 2/3 of the alerts and perform autonomous slew for performing x-ray and optical follow-up of the source with the smaller field of view of theMXT and VT instrument

<div className="overflow-table">

| Instruments | Energy Range | Field of View | Localization |
| ----------- | ------------------------------------------------------ | ------------- | --------------------------------------------- |
| ECLAIRs | 4 - 250 keV | 2 ster | ~8ʹ radius (statistical, 90% confidence) |
| GRM | 15 - 5000 keV | 2.6 ster | ~1-10° radius (statistical, 90% confidence) |
| MXT | 0.2 - 10 keV | 1.1° x 1.1° | ~10-100ʺ radius (statistical, 90% confidence) |
| VT | 450 - 650 nm (Blue band) <br/>650 - 1000 nm (Red band) | 26ʹ x 26' | ~1ʺ radius (statistical, 90% confidence) |

</div>

#### JSON-Serialized GCN Notice Types in GCN Kafka

SVOM distributes alerts and localizations detections of gamma-ray transients. These notices are published on the GCN Kafka and VOEvent topics as `gcn.notices.svom` and `gcn.notices.svom.voevent`, respectively.

<div className="overflow-table">

| Type | Contents | Latency |
| ------------------ | ----------------------------------------------------------------------------------------- | --------- |
| `trigger` | eclairs.trigger.wakeup, eclairs.trigger.not-slewing, eclairs.trigger.slewing, grm.trigger | ~1-10 sec |
| `mxt.localisation` | mxt.localisation | ~1 min |
| `refined` | eclairs.refined, grm.refined, eclgrm.refined | ~10 min |
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</div>

#### Yearly Trigger Rates

<div className="overflow-table">

| Instrument | Type | Yearly Rates |
| ---------- | -------------------------- | ------------ |
| ECLAIRs | GRBs, and other transients | 50 GRBs/yr |
| GRM | GRBs, and other transients | 90 GRBs/yr |

</div>
5 changes: 5 additions & 0 deletions app/routes/missions.tsx
Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,11 @@ export default function () {
<NavLink key="sksn" to="sksn">
Super-Kamiokande
</NavLink>,
useFeature('SVOM') && (
<NavLink key="svom" to="svom">
SVOM
</NavLink>
),
]}
/>
</div>
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