# radar calibration satellite

> orbital objects used to calibrate ground-based radars

**Wikidata**: [Q109047673](https://www.wikidata.org/wiki/Q109047673)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Radar_calibration_satellite)  
**Source**: https://4ort.xyz/entity/radar-calibration-satellite

## Summary
Radar calibration satellites are orbital objects used to calibrate ground-based radars, serving as human-made satellites placed in orbit to maintain the accuracy of radar systems on Earth.

## Key Facts
- Radar calibration satellites are artificial satellites designed to calibrate ground-based radars.
- The DS-P1, DS-P1-I, and DS-P1-Yu are models of Soviet radar calibration satellites.
- The SURCAL series represents a series of radar calibration satellites.
- The RADCAT is another model of radar calibration satellite.
- They belong to the artificial satellite class.
- Their primary use is calibration, specifically for radar systems.
- The Wikipedia page is titled "Radar calibration satellite".
- The description from Wikidata is "orbital objects used to calibrate ground-based radars".
- They have a sitelink_count of 1 on Wikipedia.

### Q: What is the primary purpose of a radar calibration satellite?
A: To calibrate ground-based radars by serving as orbital reference objects.

### Q: Which countries developed radar calibration satellites?
A: The Soviet Union developed models like DS-P1 series, and there are other models like SURCAL and RADCAT.

### Q: How do radar calibration satellites work?
A: They serve as reference objects in orbit that ground-based radars can use to verify and adjust their accuracy.

### Q: What is the relationship between radar calibration satellites and artificial satellites?
A: Radar calibration satellites are a specific type of artificial satellite designed for calibration purposes.

## Why It Matters
Radar calibration satellites play a critical role in maintaining the accuracy of ground-based radar systems used for various applications including weather monitoring, military surveillance, and space tracking. Without these calibration references, radar systems would gradually drift in accuracy, leading to unreliable data and potentially dangerous situations in military and weather applications. The satellites provide a consistent reference point that allows operators to verify and adjust radar performance, ensuring reliable operation across different systems and locations.

## Notable For
- Specifically designed for calibration purposes, distinguishing them from other types of satellites.
- The DS-P1 series represents early Soviet models of radar calibration satellites.
- The SURCAL series indicates a specific program of calibration satellites.
- The RADCAT model represents another variant in the field.
- They serve as orbital reference objects to maintain radar system accuracy.

## Body
### Classification and Classification
Radar calibration satellites are artificial satellites specifically designed for the purpose of calibrating ground-based radar systems. They belong to the broader category of artificial satellites but have a specialized function focused on radar system accuracy.

### Development and Models
The development of radar calibration satellites has included several specific models:
- **DS-P1**: A model of Soviet radar calibration satellite
- **DS-P1-I**: Another model of Soviet radar calibration satellite
- **DS-P1-Yu**: A variant of the Soviet radar calibration satellite
- **SURCAL**: A series of radar calibration satellites
- **RADCAT**: Another model of radar calibration satellite

These different models represent various iterations and improvements in the technology used for radar calibration.

### Operational Principle
Radar calibration satellites operate by serving as reference objects in orbit. Ground-based radar systems can use these satellites as targets to verify and adjust their performance. By measuring the distance and position of the satellite with high precision, radar operators can determine if their systems are functioning correctly and make necessary adjustments to maintain accuracy.

### Technical Characteristics
The satellites are designed to be visible to ground-based radar systems and typically operate in orbits that provide consistent visibility to the calibration sites. They may include reflective surfaces or other features that enhance their detectability by radar systems.

### Historical Context
The development of radar calibration satellites represents an important advancement in the field of radar technology, addressing the need for consistent reference points to maintain system accuracy over time. The Soviet models like DS-P1 series were among the early implementations of this technology.

```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Radar calibration satellite",
  "description": "Orbital objects used to calibrate ground-based radars",
  "wikipediaUrl": "https://en.wikipedia.org/wiki/Radar_calibration_satellite",
  "sameAs": ["https://www.wikidata.org/wiki/Q2298721"],
  "additionalType": "artificial satellite"
}