# Historian Quality code 1073742080 - What is it?

**URL:** <https://forum.inductiveautomation.com/t/historian-quality-code-1073742080-what-is-it/102279>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [February 12, 2025, 10:01pm UTC](https://forum.inductiveautomation.com/t/historian-quality-code-1073742080-what-is-it/102279 "2025-02-12T22:01:12Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 12, 2025, 10:25pm UTC](https://forum.inductiveautomation.com/t/historian-quality-code-1073742080-what-is-it/102279/4 "2025-02-12T22:25:02Z")

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Yeah, 256 is the code for Uncertain, and the high bits are the Uncertain severity.

It's Uncertain/Uncertain.

```java
/**
 * An unspecified degree of uncertainty exists in this value. Good luck!
 */
public static final QualityCode Uncertain = q(Level.Uncertain.code(256));

```

lol

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