ASTROSAT CZTI

Data Quality Report

Orbit 17019

Creation date: 2024-06-27T17:30:51.791861
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/AS1A05_206T01_9000002528_17019cztM0_level2.evt modeM0/AS1A05_206T01_9000002528_17019cztM0_level2_quad_clean.evt
Size (bytes)476,095,680117,504,000
Size454.0 MB 112.1 MB
Events in quadrant A3,361,118779,466
Events in quadrant B3,529,462806,400
Events in quadrant C3,279,707766,840
Events in quadrant D3,796,701742,438

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144552
B0149192
C0138682
D0158312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6656901.352163%
B6656821.231971%
C6656410.615986%
D6656911.367188%

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 7847 6658 36 36 0.46% 0.54%
B 7847 6658 23 23 0.29% 0.35%
C 7847 6658 0 0 0.00% 0.00%
D 7847 6658 72 72 0.92% 1.08%

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 15 174 276002 1707.58 798 779 161.2
A 4 2 13094 76.4 798 779 161.2
A 0 226 7054 38.93 798 779 161.2
B 3 64 178372 1159.07 812 789 153.2
B 7 220 48230 309.64 812 789 153.2
B 0 219 43409 278.18 812 789 153.2
C 14 238 120938 660.33 779 782 182.0
C 3 233 95148 518.6 779 782 182.0
C 7 247 10415 52.94 779 782 182.0
D 1 52 684229 3628.3 776 754 188.4
D 10 70 103632 546.14 776 754 188.4
D 12 235 46497 242.83 776 754 188.4

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