ASTROSAT CZTI

Data Quality Report

Orbit 11627

Creation date: 2024-06-27T16:16:06.227510
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_198T01_9000001708_11627cztM0_level2.evt modeM0/AS1A04_198T01_9000001708_11627cztM0_level2_quad_clean.evt
Size (bytes)692,677,44098,622,720
Size660.6 MB 94.1 MB
Events in quadrant A6,891,155605,849
Events in quadrant B4,938,304629,845
Events in quadrant C3,520,308626,802
Events in quadrant D5,097,478578,754

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258413
B0198342
C0161052
D0207162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7833101312.932465%
B78333234.123580%
C7833300.382995%
D78335557.085408%

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 8093 7834 467 467 5.77% 5.96%
B 8094 7835 117 117 1.45% 1.49%
C 8094 7835 0 0 0.00% 0.00%
D 8094 7835 416 416 5.14% 5.31%

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 8 5 2970813 16481.8 888 867 180.2
A 1 162 164102 905.88 888 867 180.2
A 1 178 95743 526.52 888 867 180.2
B 4 239 1052272 5942.48 921 895 176.9
B 11 51 170531 958.8 921 895 176.9
B 15 204 59955 333.81 921 895 176.9
C 13 61 6506 26.87 900 901 208.6
C 14 234 6432 26.51 900 901 208.6
C 8 128 4395 16.75 900 901 208.6
D 7 80 1078987 5187.07 865 840 207.9
D 10 199 222013 1064.08 865 840 207.9
D 13 152 188109 900.97 865 840 207.9

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