LCO CR Dataset
Download
The LCO CR dataset is hosted on Zenodo.
Data Structure
The expanded LCO CR data set directory has the following structure:
LCO_CR_dataset/
├-train_set/
│ |
│ └-0m4_2019/
│ │ ├-masked_fits/
│ │ │ ├-coj0m403-kb24-20190101-0147-e91_3frms_masks.fits
│ │ │ ├-coj0m403-kb24-20190101-0150-e91_3frms_masks.fits
│ │ │ └─...
│ │ └─CR_reduction_log.txt
│ |
│ ├-1m0_2019_2018/
│ └─2m0_2019/
│
├-test_set/
│ ├-aligned_fits/
│ ├-masked_fits/
│ └─CR_reduction_log.txt
The *-3frms_masks.fits has the following structure. The Ver 0,1,2 indicates the three exposures of a consecutive sequence. The *-3frms_aligned.fits includes only the 0-5 FITS extensions:
No. |
Name |
Ver |
Type |
Cards |
Dimensions |
Format |
|---|---|---|---|---|---|---|
0 |
PRIMARY |
1 |
PrimaryHDU |
6 |
||
1 |
SCI |
0 |
CompImageHDU |
266 |
(3054, 2042) |
float32 |
2 |
SCI |
1 |
CompImageHDU |
266 |
(3054, 2042) |
float32 |
3 |
SCI |
2 |
CompImageHDU |
266 |
(3054, 2042) |
float32 |
4 |
VALID_MASK |
1 |
CompImageHDU |
8 |
(3054, 2042) |
uint8 |
5 |
CAT |
1 |
BinTableHDU |
157 |
||
6 |
CR |
0 |
CompImageHDU |
266 |
(3054, 2042) |
uint8 |
7 |
CR |
0 |
CompImageHDU |
266 |
(3054, 2042) |
uint8 |
8 |
CR |
0 |
CompImageHDU |
266 |
(3054, 2042) |
uint8 |
9 |
IGNORE |
0 |
CompImageHDU |
266 |
(3054, 2042) |
uint8 |
10 |
IGNORE |
0 |
CompImageHDU |
266 |
(3054, 2042) |
uint8 |
11 |
IGNORE |
0 |
CompImageHDU |
266 |
(3054, 2042) |
uint8 |
The ignore mask is a coded unit8 array with the following definition:
OK (0)
boundary (1)
no data (2)
sources (4)
hot pixels (8)
Note
If you used the Cosmic-CoNN ground-imaging model or the LCO CR dataset for your research, pleaes cite the datset as well:
Xu, Chengyuan, McCully, Curtis, Dong, Boning, Howell, D. Andrew, & Sen, Pradeep. (2021). Cosmic-CoNN LCO CR Dataset (Version 0.1.0) [Data set]. Zenodo. http://doi.org/10.5281/zenodo.5034763