ASTROSAT CZTI

Data Quality Report

Orbit 09585

Creation date: 2024-06-27T15:48:29.461389
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/AS1G07_052T01_9000001362_09585cztM0_level2.evt modeM0/AS1G07_052T01_9000001362_09585cztM0_level2_quad_clean.evt
Size (bytes)642,942,72093,971,520
Size613.2 MB 89.6 MB
Events in quadrant A4,494,241588,149
Events in quadrant B3,810,505596,792
Events in quadrant C3,676,634579,072
Events in quadrant D6,963,709541,498

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185883
B0162742
C0160712
D0260552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77752363.035370%
B77751662.135048%
C77751241.594855%
D7775127316.372990%

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 9240 7777 1 1 0.01% 0.01%
B 9240 7777 0 0 0.00% 0.00%
C 9240 7777 0 0 0.00% 0.00%
D 9240 7777 803 803 8.69% 10.33%

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 318081 1604.73 965 943 197.6
A 1 178 166123 835.82 965 943 197.6
A 1 161 155685 783.0 965 943 197.6
B 12 111 22338 114.95 967 943 186.1
B 11 111 18234 92.9 967 943 186.1
B 0 189 17610 89.55 967 943 186.1
C 13 61 6853 26.92 941 946 219.4
C 8 222 2909 8.95 941 946 219.4
C 9 68 2823 8.55 941 946 219.4
D 1 52 3445719 14917.69 897 880 230.9
D 8 195 34777 146.79 897 880 230.9
D 2 234 27534 115.42 897 880 230.9

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