ASTROSAT CZTI

Data Quality Report

Orbit 05270

Creation date: 2024-06-27T14:53:21.705698
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_240T02_9000000670_05270cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05270cztM0_level2_quad_clean.evt
Size (bytes)477,587,52075,744,000
Size455.5 MB 72.2 MB
Events in quadrant A3,017,424469,172
Events in quadrant B3,018,142477,184
Events in quadrant C2,953,623466,342
Events in quadrant D5,035,891430,570

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01364
B01360
C01362
D01364

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013665339
B013590300
C013534300
D019982417

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6432300.466418%
B6452410.635462%
C6448210.325682%
D64435728.877852%

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 7682 6555 0 0 0.00% 0.00%
B 7682 6561 0 0 0.00% 0.00%
C 7682 6555 1 1 0.01% 0.02%
D 7682 6561 425 425 5.53% 6.48%

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 13 251 97880 629.1 758 740 154.4
A 12 194 7486 43.69 758 740 154.4
A 0 226 7369 42.93 758 740 154.4
B 15 204 14574 92.93 770 751 148.7
B 12 111 13657 86.76 770 751 148.7
B 4 80 11339 71.18 770 751 148.7
C 12 4 9263 49.12 749 754 173.2
C 1 16 8877 46.89 749 754 173.2
C 14 67 8683 45.77 749 754 173.2
D 11 145 2054703 11579.0 717 696 177.4
D 2 136 156181 876.51 717 696 177.4
D 10 15 27803 152.81 717 696 177.4

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