ASTROSAT CZTI

Data Quality Report

Orbit 13115

Creation date: 2024-06-27T16:36:31.811031
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/AS1A04_017T01_9000001932_13115cztM0_level2.evt modeM0/AS1A04_017T01_9000001932_13115cztM0_level2_quad_clean.evt
Size (bytes)879,543,36051,099,840
Size838.8 MB 48.7 MB
Events in quadrant A3,400,556353,581
Events in quadrant B4,824,572296,641
Events in quadrant C2,965,574360,822
Events in quadrant D15,024,47998,355

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139302
B0181891
C0128401
D0489641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62461432.289465%
B624684713.560679%
C6246480.768492%
D6246523883.861671%

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 7387 6248 31 31 0.42% 0.50%
B 7387 6247 593 593 8.03% 9.49%
C 7387 6248 0 0 0.00% 0.00%
D 7387 6248 4510 4510 61.05% 72.18%

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 15 223 173386 1092.12 776 758 158.1
A 12 189 114216 717.78 776 758 158.1
A 15 239 88528 555.27 776 758 158.1
B 0 85 1012163 7445.21 718 700 135.9
B 4 239 978682 7198.76 718 700 135.9
B 12 111 15379 108.05 718 700 135.9
C 13 61 5618 27.47 759 763 176.8
C 14 234 2655 10.7 759 763 176.8
C 0 207 2233 8.32 759 763 176.8
D 13 122 11526312 116350.26 405 392 99.1
D 10 157 1661750 16770.85 405 392 99.1
D 1 52 235560 2373.94 405 392 99.1

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