# MIPAS_L1

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `MIPAS_L1` data.

field name | type | dimensions | unit | description
--- | --- | --- | --- | ---
datetime | double | {time} | [seconds since 2000-01-01] | time of the measurement at the end of the integration time
orbit_index | int32 |  |  | absolute orbit number
latitude | double | {time} | [degree_north] | tangent latitude of the measurement
longitude | double | {time} | [degree_east] | tangent longitude of the measurement
altitude | double | {time} | [km] | tangent altitude of the measurement
wavenumber_radiance | float | {time, spectral} | [W/cm2/sr/(cm-1)] | measured radiances
wavenumber | double | {spectral} | [cm-1] | nominal wavenumber assignment for each of the detector pixels
index | int32 | {time} |  | zero-based index of the sample within the source product

## Ingestion options

The table below lists the available ingestion options for `MIPAS_L1` products.

option name | legal values | description
--- | --- | ---
band | A, AB, B, C, D | only include data from the specified band (‘A’, ‘AB’, ‘B’, ‘C’, ‘D’); by default data from all bands is retrieved

## Mapping description

MIPAS Level 1 Spectra

The table below details where and how each variable was retrieved from the input product.

field name | mapping description
--- | ---
datetime | path | /mipas_level_1b_mds[]/dsr_time
orbit_index | path | /mph/abs_orbit
latitude | path | /mipas_level_1b_mds[]/loc_2/latitude
longitude | path | /mipas_level_1b_mds[]/loc_2/longitude
altitude | path | /mipas_level_1b_mds[]/loc_1[0]
wavenumber_radiance | path | /mipas_level_1b_mds[]/band_a[], /mipas_level_1b_mds[]/band_ab[], /mipas_level_1b_mds[]/band_b[], /mipas_level_1b_mds[]/band_c[], /mipas_level_1b_mds[]/band_d[]
wavenumber | path | /sph/first_wavenum], /sph/last_wavenum[], /sph/num_points_per_band[]