ASTROSAT CZTI

Data Quality Report

Orbit 33056

Creation date: 2024-06-27T20:44:27.204292
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/AS1A11_080T01_9000004756_33056cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33056cztM0_level2_quad_clean.evt
Size (bytes)660,919,68089,665,920
Size630.3 MB 85.5 MB
Events in quadrant A2,632,664635,064
Events in quadrant B4,138,263614,400
Events in quadrant C2,884,818615,933
Events in quadrant D9,983,033459,020

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112823
B0158412
C0121142
D0335742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A556950.089783%
B55693616.482313%
C5569671.203089%
D5569251445.142755%

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 8645 5571 0 0 0.00% 0.00%
B 8645 5571 215 215 2.49% 3.86%
C 8645 5571 54 54 0.62% 0.97%
D 8645 5570 2367 2367 27.38% 42.50%

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 6 36646 264.56 669 657 136.0
A 13 254 9254 63.2 669 657 136.0
A 7 16 7030 46.85 669 657 136.0
B 5 172 827189 6632.39 649 634 124.6
B 5 200 214663 1717.4 649 634 124.6
B 5 31 151646 1211.74 649 634 124.6
C 0 10 200031 1334.59 642 650 149.4
C 7 221 97964 651.39 642 650 149.4
C 6 247 17789 114.72 642 650 149.4
D 7 223 4490549 31926.52 529 520 140.6
D 7 204 1179116 8380.45 529 520 140.6
D 8 195 1157126 8224.09 529 520 140.6

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