ASTROSAT CZTI

Data Quality Report

Orbit 24090

Creation date: 2024-06-27T19:02:02.389652
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/AS1T03_182T01_9000003560_24090cztM0_level2.evt modeM0/AS1T03_182T01_9000003560_24090cztM0_level2_quad_clean.evt
Size (bytes)622,224,00081,771,840
Size593.4 MB 78.0 MB
Events in quadrant A3,810,508495,075
Events in quadrant B4,048,994500,082
Events in quadrant C3,901,165480,876
Events in quadrant D6,566,288468,968

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160402
B0167192
C0160872
D0247454

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76371672.186723%
B76372262.959277%
C76371972.579547%
D76365817.608696%

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 7897 7638 0 0 0.00% 0.00%
B 7897 7638 8 8 0.10% 0.10%
C 7897 7638 0 0 0.00% 0.00%
D 7896 7637 367 367 4.65% 4.81%

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 2 250 16577 78.69 981 960 198.5
A 13 254 13309 62.23 981 960 198.5
A 3 1 10671 48.93 981 960 198.5
B 0 229 78942 415.44 970 943 187.8
B 0 189 63996 335.83 970 943 187.8
B 5 172 26055 133.75 970 943 187.8
C 14 238 144178 645.95 935 942 221.7
C 7 247 78237 348.58 935 942 221.7
C 10 91 18818 80.62 935 942 221.7
D 1 52 1092581 4771.31 937 911 228.8
D 8 195 761905 3326.04 937 911 228.8
D 12 218 711422 3105.4 937 911 228.8

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