ASTROSAT CZTI

Data Quality Report

Orbit 35034

Creation date: 2022-06-11T14:01:24.005658
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/AS1T05_010T01_9000005016_35034cztM0_level2.evt modeM0/AS1T05_010T01_9000005016_35034cztM0_level2_quad_clean.evt
Size (bytes)482,244,48080,147,520
Size459.9 MB 76.4 MB
Events in quadrant A2,730,175518,047
Events in quadrant B4,418,895518,333
Events in quadrant C2,980,635511,518
Events in quadrant D4,086,382478,739

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117823
B0168682
C0120542
D0161272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5728100.174581%
B572867211.731844%
C5728240.418994%
D5728721.256983%

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 9191 5730 2 2 0.02% 0.03%
B 9190 5729 651 651 7.08% 11.36%
C 9191 5730 19 19 0.21% 0.33%
D 9191 5730 52 52 0.57% 0.91%

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 79456 578.15 675 663 136.3
A 15 174 24953 178.23 675 663 136.3
A 13 6 16988 119.79 675 663 136.3
B 5 200 1801272 15209.47 612 594 118.4
B 5 172 89961 754.84 612 594 118.4
B 4 232 44153 367.92 612 594 118.4
C 15 214 239234 1566.88 660 666 152.3
C 0 10 94577 616.79 660 666 152.3
C 14 67 58850 382.14 660 666 152.3
D 8 195 1178235 7272.35 657 640 161.9
D 13 249 157044 965.89 657 640 161.9
D 10 199 73232 448.3 657 640 161.9

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