---
title: QasmQobjExperimentConfig (v0.46)
description: API reference for qiskit.qobj.QasmQobjExperimentConfig in qiskit v0.46
source: https://eu-de.quantum.cloud.ibm.com/docs/en/api/qiskit/0.46/qiskit.qobj.QasmQobjExperimentConfig
---

# QasmQobjExperimentConfig

*class* `qiskit.qobj.QasmQobjExperimentConfig(calibrations=None, qubit_lo_freq=None, meas_lo_freq=None, **kwargs)`

[GitHub](https://github.com/qiskit/qiskit/tree/stable/0.46/qiskit/qobj/qasm_qobj.py)

Bases: `QobjDictField`

Configuration for a single OpenQASM 2 experiment in the qobj.

**Parameters**

- **calibrations** ([*QasmExperimentCalibrations*](/docs/api/qiskit/0.46/qiskit.qobj.QasmExperimentCalibrations "qiskit.qobj.QasmExperimentCalibrations")) – Information required for Pulse gates.
- **qubit\_lo\_freq** (*List\[*[*float*](https://docs.python.org/3/library/functions.html#float)*]*) – List of qubit LO frequencies in GHz.
- **meas\_lo\_freq** (*List\[*[*float*](https://docs.python.org/3/library/functions.html#float)*]*) – List of meas readout LO frequencies in GHz.
- **kwargs** – Additional free form key value fields to add to the configuration

## Methods

### from\_dict

*classmethod* `from_dict(data)`

Create a new QobjHeader object from a dictionary.

**Parameters**

**data** ([*dict*](https://docs.python.org/3/library/stdtypes.html#dict)) – A dictionary representing the QobjHeader to create. It will be in the same format as output by [`to_dict()`](#qiskit.qobj.QasmQobjExperimentConfig.to_dict "qiskit.qobj.QasmQobjExperimentConfig.to_dict").

**Returns**

The QobjDictField from the input dictionary.

**Return type**

QobjDictFieldr

### to\_dict

`to_dict()`

Return a dictionary format representation of the OpenQASM 2 Qobj.

**Returns**

The dictionary form of the QobjHeader.

**Return type**

[dict](https://docs.python.org/3/library/stdtypes.html#dict)