ASTROSAT CZTI

Data Quality Report

Orbit 07528

Creation date: 2024-06-27T15:20:52.246382
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/AS1G06_076T01_9000001038_07528cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07528cztM0_level2_quad_clean.evt
Size (bytes)445,017,60088,873,920
Size424.4 MB 84.8 MB
Events in quadrant A3,071,615567,758
Events in quadrant B3,143,717580,364
Events in quadrant C3,013,126558,684
Events in quadrant D3,806,098530,200

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134133
B0135772
C0134362
D0158702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6515711.089793%
B6515841.289332%
C6515430.660015%
D65152163.315426%

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 7595 6516 0 0 0.00% 0.00%
B 7595 6515 1 1 0.01% 0.02%
C 7595 6515 0 0 0.00% 0.00%
D 7595 6515 144 144 1.90% 2.21%

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 14 43469 269.95 787 771 158.2
A 0 226 7700 43.81 787 771 158.2
A 12 194 6943 39.02 787 771 158.2
B 0 213 40475 265.56 794 774 149.5
B 0 219 15935 101.41 794 774 149.5
B 12 111 14578 92.34 794 774 149.5
C 10 22 23530 129.73 760 764 175.5
C 8 229 11117 59.0 760 764 175.5
C 1 16 9029 47.1 760 764 175.5
D 2 136 297434 1615.38 752 728 183.7
D 2 244 245805 1334.29 752 728 183.7
D 2 152 175883 953.61 752 728 183.7

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