ASTROSAT CZTI

Data Quality Report

Orbit 28444

Creation date: 2024-06-27T19:51:48.781276
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/AS1A10_101T21_9000004090_28444cztM0_level2.evt modeM0/AS1A10_101T21_9000004090_28444cztM0_level2_quad_clean.evt
Size (bytes)488,698,560118,235,520
Size466.1 MB 112.8 MB
Events in quadrant A3,118,997792,939
Events in quadrant B3,212,915813,208
Events in quadrant C3,914,498785,935
Events in quadrant D4,140,267763,117

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131880
B0134460
C0158950
D0165700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6104851.392529%
B6103951.556612%
C61032413.948878%
D61031822.982140%

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 7449 6104 0 0 0.00% 0.00%
B 7448 6103 3 3 0.04% 0.05%
C 7448 6103 78 78 1.05% 1.28%
D 7448 6103 127 127 1.71% 2.08%

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 13 254 9839 56.8 805 790 159.3
A 8 192 8405 47.8 805 790 159.3
A 3 137 7377 41.35 805 790 159.3
B 0 230 28627 187.91 802 783 148.2
B 12 111 17339 111.73 802 783 148.2
B 11 111 15908 102.07 802 783 148.2
C 7 220 660849 3633.84 790 797 181.6
C 14 238 129092 706.31 790 797 181.6
C 3 233 32686 175.56 790 797 181.6
D 1 52 577718 3071.35 792 772 187.8
D 8 195 412200 2190.22 792 772 187.8
D 2 250 98656 521.08 792 772 187.8

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