ASTROSAT CZTI

Data Quality Report

Orbit 25345

Creation date: 2024-06-27T19:16:36.082866
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/AS1A09_059T01_9000003706_25345cztM0_level2.evt modeM0/AS1A09_059T01_9000003706_25345cztM0_level2_quad_clean.evt
Size (bytes)521,493,120114,883,200
Size497.3 MB 109.6 MB
Events in quadrant A3,695,104784,064
Events in quadrant B3,678,878785,959
Events in quadrant C3,861,362730,115
Events in quadrant D4,118,541727,195

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151580
B0150310
C0154590
D0166780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64891081.664355%
B64901221.879815%
C64892223.421174%
D64891221.880105%

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 7824 6489 0 0 0.00% 0.00%
B 7825 6490 0 0 0.00% 0.00%
C 7824 6490 20 20 0.26% 0.31%
D 7824 6489 26 26 0.33% 0.40%

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 13 254 9563 46.27 957 943 186.3
A 0 226 8440 40.24 957 943 186.3
A 3 137 7609 35.78 957 943 186.3
B 0 190 25240 143.22 931 911 169.9
B 12 111 19480 109.31 931 911 169.9
B 11 111 17815 99.51 931 911 169.9
C 9 54 233944 1143.02 888 895 203.9
C 14 238 146610 714.68 888 895 203.9
C 3 233 18553 86.61 888 895 203.9
D 8 195 215708 973.09 921 897 220.8
D 12 235 174297 785.5 921 897 220.8
D 12 233 123029 553.26 921 897 220.8

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