ASTROSAT CZTI

Data Quality Report

Orbit 47882

Creation date: 2024-08-05T12:23:56.006137
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/AS1A13_053T01_9000006370_47882cztM0_level2.fits modeM0/AS1A13_053T01_9000006370_47882cztM0_level2_quad_clean.evt
Size (bytes)455,633,280109,558,080
Size434.5 MB 104.5 MB
Events in quadrant A6,711,817705,641
Events in quadrant B2,954,078758,735
Events in quadrant C2,946,619737,729
Events in quadrant D3,749,592662,544

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02456810
B0133722
C0134113
D0158568

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64912674.113388%
B6493420.646850%
C6492270.415896%
D64881462.250308%

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 7633 6494 55 55 0.72% 0.85%
B 7633 6494 3 3 0.04% 0.05%
C 7633 6494 3 3 0.04% 0.05%
D 7632 6491 144 144 1.89% 2.22%

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 10 83 3874849 25826.13 720 702 150.0
A 13 248 52570 345.76 720 702 150.0
A 7 3 10372 64.46 720 702 150.0
B 12 3 21909 148.36 729 707 142.9
B 0 183 21373 144.61 729 707 142.9
B 12 111 18105 121.74 729 707 142.9
C 14 254 57207 327.41 737 741 172.5
C 12 2 6276 32.09 737 741 172.5
C 3 160 6123 31.2 737 741 172.5
D 2 165 658121 3687.05 724 703 178.3
D 12 233 160042 893.63 724 703 178.3
D 7 96 55241 305.87 724 703 178.3

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