# e-st@r-II

> Italian satellite

**Wikidata**: [Q24025057](https://www.wikidata.org/wiki/Q24025057)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/E-st@r-II)  
**Source**: https://4ort.xyz/entity/e-st-r-ii

## Summary
e-st@r-II is an Italian artificial satellite operated by the Polytechnic University of Turin. It is a follow-on to the e-st@r satellite and was launched on 2016-04-25 aboard a Soyuz-2.1a rocket (COSPAR ID 2016-025D).

## Key Facts
- Instance: artificial satellite.
- Country of origin: Italy.
- Operator: Polytechnic University of Turin.
- Launch date: 2016-04-25.
- Launch vehicle: Soyuz-2.1a.
- COSPAR ID: 2016-025D.
- Satellite Catalog Number (SCN): 41459.
- Relationship: follows the e-st@r satellite (part of the e-st@r series).
- Wikimedia image available: https://commons.wikimedia.org/wiki/Special:FilePath/E-st@r-II_before_launch.jpg
- Wikipedia title: E-st@r-II (articles exist in English, Italian, Latvian).

## FAQs
### Q: What is e-st@r-II?
A: e-st@r-II is an Italian artificial satellite operated by the Polytechnic University of Turin and identified by COSPAR ID 2016-025D. It is a follow-on satellite in the e-st@r series.

### Q: When and how was e-st@r-II launched?
A: e-st@r-II was launched on 2016-04-25 aboard a Soyuz-2.1a launch vehicle. The launch is recorded as a significant rocket launch event on that date.

### Q: Who operates e-st@r-II?
A: The satellite is operated by the Polytechnic University of Turin. The mission is listed under Italy as the country of origin.

## Why It Matters
e-st@r-II matters as a documented university-operated satellite project from Italy. Its operation by the Polytechnic University of Turin and its place as a follow-on to e-st@r indicate continuity in an academic or programmatic effort to field satellites under the e-st@r designation. The recorded launch on 2016-04-25 and registration under COSPAR ID 2016-025D and SCN 41459 make it a traceable element in international satellite catalogs and launch records. For researchers, educators, and archivists, those identifiers and the clear institutional operator provide a verifiable reference point for studies of university-led satellite programmes, national space activity from Italy, and launch vehicle usage (Soyuz-2.1a). The availability of a pre-launch image and multilingual Wikipedia entries further support public documentation and accessibility of the mission's basic information.

## Notable For
- Operated by the Polytechnic University of Turin, marking it as a university-run satellite project.
- Launched on 2016-04-25 aboard a Soyuz-2.1a rocket.
- Registered under COSPAR ID 2016-025D and Satellite Catalog Number 41459.
- Part of the e-st@r satellite series, directly following the original e-st@r.

## Body
### Overview
- Name: e-st@r-II.
- Instance: artificial satellite.
- Country of origin: Italy.
- Operator: Polytechnic University of Turin.

### Launch and Event
- Launch date: 2016-04-25.
- Launch vehicle: Soyuz-2.1a.
- Significant event recorded: rocket launch on 2016-04-25.
- COSPAR ID assigned: 2016-025D.
- Satellite Catalog Number (SCN): 41459.

### Programme and Relationships
- Follows: e-st@r (the earlier satellite in the same series).
- Classified as part of the e-st@r series of satellites (explicitly listed as following e-st@r).

### Identifiers and Documentation
- Wikipedia title: E-st@r-II (articles available in English, Italian, Latvian).
- Wikimedia image (pre-launch): https://commons.wikimedia.org/wiki/Special:FilePath/E-st@r-II_before_launch.jpg
- Sitlink count (linked references across Wikimedia projects): 3.

### Operator Detail
- Polytechnic University of Turin is listed as the operator of e-st@r-II.

### Source-level metadata
- SCN value recorded as 41459.
- Launch and event references recorded for 2016-04-25 and the Soyuz-2.1a launch vehicle.

## References

1. Jonathan's Space Report