ASTROSAT CZTI

Data Quality Report

Orbit 04176

Creation date: 2024-06-27T14:38:24.920423
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_240T01_9000000536_04176cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04176cztM0_level2_quad_clean.evt
Size (bytes)401,785,92057,591,360
Size383.2 MB 54.9 MB
Events in quadrant A3,602,180330,146
Events in quadrant B2,837,372343,012
Events in quadrant C2,548,255342,512
Events in quadrant D2,792,577329,296

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01162
D01162

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014745360
B012356112
C01171476
D012578121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56762644.651163%
B5700641.122807%
C5712140.245098%
D5695500.877963%

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 5765 5729 187 187 3.24% 3.26%
B 5765 5738 31 31 0.54% 0.54%
C 5765 5745 1 1 0.02% 0.02%
D 5765 5744 28 28 0.49% 0.49%

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 0 199 487398 3688.39 640 627 132.0
A 3 1 292823 2214.05 640 627 132.0
A 15 234 209766 1584.7 640 627 132.0
B 7 252 143195 1101.66 660 644 129.4
B 10 16 48954 373.35 660 644 129.4
B 15 204 29521 223.17 660 644 129.4
C 10 65 42675 279.1 639 642 150.6
C 9 144 10131 63.01 639 642 150.6
C 13 61 5407 31.64 639 642 150.6
D 2 232 145348 931.87 632 613 155.3
D 13 239 136586 875.45 632 613 155.3
D 12 233 42128 267.29 632 613 155.3

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