ASTROSAT CZTI

Data Quality Report

Orbit 03982

Creation date: 2024-06-27T14:35:57.833579
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/AS1G05_247T01_9000000512_03982cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03982cztM0_level2_quad_clean.evt
Size (bytes)427,248,00092,139,840
Size407.5 MB 87.9 MB
Events in quadrant A4,095,873577,926
Events in quadrant B3,098,051610,770
Events in quadrant C2,518,450613,471
Events in quadrant D2,833,144583,581

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162092
B0130591
C0117151
D0126921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A578261010.549983%
B57821482.559668%
C5782200.345901%
D57821071.850571%

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 6897 5783 445 445 6.45% 7.69%
B 6897 5783 96 96 1.39% 1.66%
C 6897 5783 1 1 0.01% 0.02%
D 6897 5783 78 78 1.13% 1.35%

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 0 50 1606403 12574.81 621 606 127.7
A 0 118 34162 262.77 621 606 127.7
A 3 1 26967 206.43 621 606 127.7
B 15 255 312893 2522.08 651 634 123.8
B 15 204 106040 851.35 651 634 123.8
B 14 167 89120 714.69 651 634 123.8
C 9 144 15378 99.88 639 640 147.6
C 10 65 5952 36.0 639 640 147.6
C 13 61 5346 31.89 639 640 147.6
D 10 246 319506 2118.36 629 611 150.5
D 2 63 36054 235.44 629 611 150.5
D 2 232 21609 139.49 629 611 150.5

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