ASTROSAT CZTI

Data Quality Report

Orbit 04300

Creation date: 2024-06-27T14:40:06.361003
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_219T01_9000000540_04300cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04300cztM0_level2_quad_clean.evt
Size (bytes)495,354,24077,117,760
Size472.4 MB 73.5 MB
Events in quadrant A3,852,292464,462
Events in quadrant B4,268,446477,287
Events in quadrant C3,114,930477,420
Events in quadrant D3,328,504466,186

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159003
B0169092
C0137012
D0144762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64484306.668734%
B64482553.954715%
C6448560.868486%
D64481001.550868%

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 7623 6449 314 314 4.12% 4.87%
B 7623 6449 173 173 2.27% 2.68%
C 7623 6450 2 2 0.03% 0.03%
D 7623 6449 42 42 0.55% 0.65%

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 15 234 879251 5640.68 759 744 155.7
A 13 14 21998 136.47 759 744 155.7
A 13 248 17096 104.99 759 744 155.7
B 14 167 1059896 6995.21 785 769 151.4
B 15 204 48844 317.52 785 769 151.4
B 10 16 34090 220.08 785 769 151.4
C 14 67 79547 445.74 755 760 176.8
C 9 247 60284 336.76 755 760 176.8
C 14 48 23029 125.99 755 760 176.8
D 2 136 177678 961.34 760 738 184.1
D 14 34 58858 315.77 760 738 184.1
D 13 72 37451 199.46 760 738 184.1

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