ASTROSAT CZTI

Data Quality Report

Orbit 47451

Creation date: 2024-07-07T10:16:10.238239
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/AS1A13_089T01_9000006330_47451cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47451cztM0_level2_quad_clean.evt
Size (bytes)602,043,840132,897,600
Size574.2 MB 126.7 MB
Events in quadrant A8,196,912865,451
Events in quadrant B4,871,989901,705
Events in quadrant C4,012,153879,260
Events in quadrant D4,557,130796,747

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0301154
B0200691
C0179531
D0196551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83553003.590664%
B83552953.530820%
C8355380.454817%
D83551471.759425%

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 8375 8356 1 1 0.01% 0.01%
B 8375 8356 80 80 0.96% 0.96%
C 8375 8356 13 13 0.16% 0.16%
D 8375 8356 119 119 1.42% 1.42%

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 10 83 4300719 20909.45 971 947 205.6
A 9 191 136399 658.69 971 947 205.6
A 3 137 12237 54.9 971 947 205.6
B 5 32 781800 3972.17 975 942 196.6
B 12 3 113388 572.0 975 942 196.6
B 0 190 44054 219.31 975 942 196.6
C 3 233 218320 948.4 962 965 229.2
C 0 207 16641 68.4 962 965 229.2
C 14 254 9545 37.44 962 965 229.2
D 2 249 619040 2560.52 952 923 241.4
D 13 29 65298 266.67 952 923 241.4
D 2 234 47441 192.7 952 923 241.4

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