The GOLD night disk scan (NI1) measurements are used to derive the peak electron density
(NMAX, electrons/cm3) on the disk. GOLD performs NI1 scans in both hemispheres from 17:00 to 21:00 hours
spacecraft local time each night. NMAX is retrieved on a 2D rectangular (latitude vs. longitude) grid
of fixed dimensions for each scan. However, the actual latitude and longitude values in the grid vary
from scan to scan as the NI1 sequence utilizes a pattern of short (15 minute) localized scans that
progress from east to west across the disk throughout the sequence.
Version:2.3.1
The GOLD night disk scan (NI1) measurements are used to derive the peak electron density
(NMAX, electrons/cm3) on the disk. GOLD performs NI1 scans in both hemispheres from 17:00 to 21:00 hours
spacecraft local time each night. NMAX is retrieved on a 2D rectangular (latitude vs. longitude) grid
of fixed dimensions for each scan. However, the actual latitude and longitude values in the grid vary
from scan to scan as the NI1 sequence utilizes a pattern of short (15 minute) localized scans that
progress from east to west across the disk throughout the sequence.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Richard.Eastes |
| 2. | MetadataContact | spase://SMWG/Person/James.M.Weygand |
GOLD web page with news and other information.
Eastes, R.W., McClintock, W.E., Burns, A.G. et al. Space Sci. Rev. (2017) vol. 212, pp.383.
FTPS access to Gold Level L2 data
HTTPS access to Gold Level L2 data
Wavelength mask defining the 135.6-nm emission passband.
Wavelength grid for 1356 mask.
Radiance in Oxygen 135.6-nm bandpass.
GOLD channel (‘A’ or ‘B’).
Random uncertainty in retrieved peak electron density.
Model uncertainty in retrieved peak electron density.
Pixel latitude.
Random uncertainty in oxygen 135.6 nm brightness.
Counts in Oxygen 135.6-nm bandpass.
NMAX data quality index (see table below).
UTC start time of scan, e.g., "2017-06-21T23:46:38.015Z".
NMAX data quality index (see table below).
Solar zenith angle at 225 km tangent point.
Pixel longitude.
UTC date/time string: "2017-06-21T23:46:38.015Z".
Retrieved peak electron density..
L1C file name for each occultation.
Pixel emission angle (relative to zenith).
UTC stop time of scan, e.g., "2017-06-21T23:46:38.015Z".
Systematic uncertainty in oxygen 135.6 nm brightness.
Hemisphere scanned (‘N’ or ‘S’).