ASTROSAT CZTI

Data Quality Report

Orbit 13422

Creation date: 2024-06-27T16:40:34.087601
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/AS1A04_103T01_9000001988_13422cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13422cztM0_level2_quad_clean.evt
Size (bytes)708,716,160104,656,320
Size675.9 MB 99.8 MB
Events in quadrant A3,684,172670,390
Events in quadrant B3,882,592686,159
Events in quadrant C3,637,981668,710
Events in quadrant D9,722,390593,173

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163984
B0168683
C0162773
D0342893

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7915370.467467%
B79151411.781428%
C7915250.315856%
D7915190224.030322%

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 8706 7916 2 2 0.02% 0.03%
B 8706 7918 28 28 0.32% 0.35%
C 8706 7918 1 1 0.01% 0.01%
D 8706 7919 1879 1879 21.58% 23.73%

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 27143 136.21 941 920 192.5
A 15 69 14964 72.95 941 920 192.5
A 8 15 12048 57.8 941 920 192.5
B 4 142 149079 815.21 944 918 181.7
B 3 64 31155 166.37 944 918 181.7
B 12 111 21668 114.17 944 918 181.7
C 3 233 40233 183.1 918 922 214.7
C 14 220 9337 39.2 918 922 214.7
C 13 61 6447 25.73 918 922 214.7
D 1 52 3828739 19179.86 833 811 199.6
D 13 249 2388814 11965.11 833 811 199.6
D 2 136 191435 955.12 833 811 199.6

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