HAYABUSA2 Optical Navigation Camera (ONC)

Release Dates

Plan of Future Release


Important Notice on the Use of the Data

Instrument Overview

Definition of Product Level (updated on Nov. 19, 2019)

Level Data Description Unit
l2a Raw images in FITS format (16-bit integer) DN
l2b Images after hardware correction and radiometric correction in FITS format (32-bit float) DN/s
l2c Distortion corrected irradiance images in FITS format (32-bit float) W/m^2/um/str
l2d I/F (or radiance factor) images in FITS format (32-bit float) non-dimensional(I/F)
l2e Photometrically corrected reflectance images in FITS format (32-bit float) (in preparation) non-dimensional(reflectance)
l3Mosaicked global I/F or reflectance images in FITS format (32-bit float) (in preparation)non-dimensional(I/F or reflectance)

File Naming Convention

Symbols Meaning
yymmdd_hhmmss Exposure start time in UTC.
CB Camera type
{w1, w2, t+band{u:ul, i:WIDE, v:v, w:w, x:x, n:Na, p:p, b:b }}
T Image Type
{f:mainframe(1024x1024), b:optical black(16x1024x2(on both s ides))}
ldx(x) Product level. e.g., l2a, l2b.
Additional character describes minor version of the product such as l2dr, indicating l2d coregistrated among bands).

Imaging Condition

The details of the imaging condition are described in FITS header of each image file or an extracted FITS header in text format.

Data Processing Tools


Please see papers in "Reference" section. Flat fields is in calibration data directory .

Definition of Mission Phases

Period Name of mission phase
Dec. 3, 2014 - Dec. 3, 2015 EDVEGA (Electric Delta-V Earth Gravity Assist).
From launch until Earth swing-by.
Dec. 3, 2015 - June, 2018 Transfer
June, 2018 - June 28, 2018 Approach
June 28, 2018 - Nov. 2019 Proximity