NIR reflectance spectra of mixtures of AMES tholins with liquid and solid CH4, C2H6 and CH3CN at several temperatures | SOSYPOL

Experiment

Title: NIR reflectance spectra of mixtures of AMES tholins with liquid and solid CH4, C2H6 and CH3CN at several temperatures

DOI

10.26302/SSHADE/EXPERIMENT_DM_20131017_001

Data reference

Mege, Daniel; Nna-Mvondo, Delphine; Singh, Sandeep; Chevrier, Vincent (2013): NIR reflectance spectra of mixtures of AMES tholins with liquid and solid CH4, C2H6 and CH3CN at several temperatures. SSHADE/SOSYPOL (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_DM_20131017_001

Publications

Owner

Database(s)

SOSYPOL

Experimentalists

Spectra preview

Experiment type

Type(s): laboratory measurement
Description: NIR reflectance spectra of AMES tholins (from 90% N2:10% CH4) pure and mixed with different liquids and solids (CH4, C2H6 and CH3CN+C2N6) at temperatures from ambient to 88 K. Spectra were recorded upon cooling while the liquid was progressively added. Freezing occured at some point.
Number of spectra: 24

Variable parameters

Variable type(s)

sample composition
sample abundance
temperature

Comments

Sample abundance is varying with time during liquid addition and its sublimation.

Location

Laboratory: Keck Laboratory for Space Simulations (KECK_UARK)

Instrument #1

Instrument: FTIR_NIR_reflectance
Sample holder: Andromeda simulation chamber with Titan Module

Spectral parameters

Standard medium

vacuum

Observation mode

spectrum

Spectral range type(s)

NIR

Valid spectral range(s)

	Min - Max ($cm^{-1}$)	Sampling ($cm^{-1}$)	Resolution ($cm^{-1}$)	Position accuracy ($cm^{-1}$)	Absorption edge
#1	7330.0 - 9000.0	4.0	2.0
#2	4300.0 - 7100.0	4.0	2.0

Angular parameters

Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).

Observation geometry: bidirectional
Observation mode: fixed angles
Incidence angle: 0.0°
Emergence angle: 5.0°
Azimuth angle: 0.0°
Phase angle: 5.0°

Spatial parameters

Observation mode: single spot
Spatial resolution: 15.0 ${\pm}$ 5.0 $mm$

History

Date begin - end: 2013-10-17 - 2013-10-23

Versions

Release date: 2020-02-13 12:08:22 UTC+0000
Version (Date): #1 (2020-02-13 12:08:22 UTC+0000, Updated: 2020-02-13 12:08:22 UTC+0000)

Image

Verification of alignment of tholins with the fiber optics.

Location of the fiber optics beam in the Andromeda simulation chamber before closing the chamber for experiment on AMES tholins (from 90% N2:10% CH4).