ASTROSAT CZTI

Data Quality Report

Orbit 17350

Creation date: 2024-06-27T17:35:21.415262
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_165T12_9000002562_17350cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17350cztM0_level2_quad_clean.evt
Size (bytes)455,549,76079,565,760
Size434.4 MB 75.9 MB
Events in quadrant A3,112,069497,998
Events in quadrant B3,165,294506,772
Events in quadrant C3,262,245479,927
Events in quadrant D3,813,651469,804

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135032
B0135962
C0137612
D0156742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6522520.797301%
B6522570.873965%
C6522851.303281%
D65221642.514566%

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 7567 6523 0 0 0.00% 0.00%
B 7567 6522 0 0 0.00% 0.00%
C 7567 6523 0 0 0.00% 0.00%
D 7567 6523 84 84 1.11% 1.29%

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 0 226 7320 39.94 808 791 163.5
A 3 137 5922 31.39 808 791 163.5
A 12 194 5878 31.12 808 791 163.5
B 12 111 18349 113.8 803 783 154.4
B 11 111 16038 98.83 803 783 154.4
B 14 111 13990 85.56 803 783 154.4
C 14 238 120079 657.88 780 786 181.3
C 3 233 101543 555.66 780 786 181.3
C 13 61 5423 25.57 780 786 181.3
D 5 222 320144 1684.2 784 762 189.6
D 13 232 284372 1495.57 784 762 189.6
D 13 189 104078 544.82 784 762 189.6

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