ASTROSAT CZTI

Data Quality Report

Orbit 13663

Creation date: 2024-06-27T16:44:45.860670
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T02_039T01_9000002026_13663cztM0_level2.evt modeM0/AS1T02_039T01_9000002026_13663cztM0_level2_quad_clean.evt
Size (bytes)529,770,24092,833,920
Size505.2 MB 88.5 MB
Events in quadrant A3,423,427611,179
Events in quadrant B4,116,157613,480
Events in quadrant C3,497,666600,315
Events in quadrant D4,592,810559,413

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137362
B0163811
C0140861
D0180531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61151191.946034%
B61151923.139820%
C6115901.471791%
D61152173.548651%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7426 6117 0 0 0.00% 0.00%
B 7426 6117 53 53 0.71% 0.87%
C 7426 6117 0 0 0.00% 0.00%
D 7426 6117 54 54 0.73% 0.88%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 1 162 17691 95.2 879 868 176.7
A 0 226 7724 38.8 879 868 176.7
A 9 143 7263 36.19 879 868 176.7
B 0 219 206122 1262.39 874 859 162.6
B 0 229 195388 1196.37 874 859 162.6
B 0 189 103443 630.9 874 859 162.6
C 3 233 240043 1252.82 833 842 190.9
C 13 61 6051 27.28 833 842 190.9
C 14 234 4579 19.57 833 842 190.9
D 5 222 1395637 7145.48 824 807 195.2
D 2 234 24265 120.17 824 807 195.2
D 8 195 22912 113.24 824 807 195.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter