ASTROSAT CZTI

Data Quality Report

Orbit 03182

Creation date: 2024-06-27T14:25:37.177270
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/AS1G05_127T01_9000000436_03182cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03182cztM0_level2_quad_clean.evt
Size (bytes)812,448,00080,899,200
Size774.8 MB 77.2 MB
Events in quadrant A2,966,010580,118
Events in quadrant B3,295,663589,750
Events in quadrant C14,791,376280,156
Events in quadrant D3,117,707550,424

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132613
B0141562
C0481762
D0138842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6416270.420823%
B6416540.841646%
C6416523681.608479%
D6416300.467581%

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 7596 6417 0 0 0.00% 0.00%
B 7596 6417 10 10 0.13% 0.16%
C 7595 6415 4813 4813 63.37% 75.03%
D 7596 6417 14 14 0.18% 0.22%

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 8 15 21705 135.17 760 745 155.1
A 12 194 7997 46.77 760 745 155.1
A 0 226 7729 45.04 760 745 155.1
B 4 80 91747 613.47 778 762 148.3
B 4 81 81196 542.33 778 762 148.3
B 2 249 47424 314.62 778 762 148.3
C 12 206 13166946 163480.91 345 348 80.5
C 1 192 202709 2512.58 345 348 80.5
C 6 80 49650 612.15 345 348 80.5
D 12 233 98133 553.86 728 710 175.9
D 2 136 70548 397.04 728 710 175.9
D 13 223 65123 366.19 728 710 175.9

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