ASTROSAT CZTI

Data Quality Report

Orbit 16133

Creation date: 2024-06-27T17:18:28.488596
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/AS1T02_092T01_9000002384_16133cztM0_level2.evt modeM0/AS1T02_092T01_9000002384_16133cztM0_level2_quad_clean.evt
Size (bytes)442,690,56070,102,080
Size422.2 MB 66.9 MB
Events in quadrant A3,261,225430,010
Events in quadrant B3,474,051424,091
Events in quadrant C3,162,319408,435
Events in quadrant D3,069,663408,823

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138362
B0143011
C0133451
D0133801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6466821.268172%
B6466981.515620%
C6466630.974327%
D6466320.494896%

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 7347 6468 26 26 0.35% 0.40%
B 7347 6468 34 34 0.46% 0.53%
C 7347 6468 0 0 0.00% 0.00%
D 7347 6468 4 4 0.05% 0.06%

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 170285 1062.13 779 763 159.6
A 0 253 88695 550.93 779 763 159.6
A 0 226 6823 37.97 779 763 159.6
B 0 189 92488 613.85 780 761 149.4
B 15 201 84665 561.5 780 761 149.4
B 4 216 59776 394.94 780 761 149.4
C 14 238 114670 649.18 746 749 175.5
C 3 233 76962 434.3 746 749 175.5
C 3 9 49724 279.09 746 749 175.5
D 1 52 185798 987.65 758 735 187.4
D 2 234 29015 150.93 758 735 187.4
D 14 226 7393 35.53 758 735 187.4

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