ASTROSAT CZTI

Data Quality Report

Orbit 47209

Creation date: 2024-06-27T23:32:53.323871
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/AS1A13_019T01_9000006302_47209cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47209cztM0_level2_quad_clean.evt
Size (bytes)782,124,48097,580,160
Size745.9 MB 93.1 MB
Events in quadrant A12,948,964434,172
Events in quadrant B4,047,254728,856
Events in quadrant C3,263,261714,732
Events in quadrant D8,163,526599,927

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0431892
B0167592
C0146942
D0289662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140460943874088140458315481134
B0-1-1
C0-1-1
D0-1-1

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6836326947.820363%
B68352052.999268%
C6835330.482809%
D683579711.660571%

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 7731 6836 3058 3058 39.56% 44.73%
B 7730 6835 136 136 1.76% 1.99%
C 7730 6836 25 25 0.32% 0.37%
D 7730 6835 815 815 10.54% 11.92%

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 9 191 7170251 53015.6 647 631 135.2
A 10 83 3269901 24174.54 647 631 135.2
A 13 254 9960 68.98 647 631 135.2
B 0 190 323349 2168.05 749 727 148.8
B 5 32 277806 1862.0 749 727 148.8
B 15 201 205038 1372.99 749 727 148.8
C 14 254 202810 1138.12 745 748 177.5
C 15 208 131104 734.24 745 748 177.5
C 0 207 13935 74.28 745 748 177.5
D 6 112 4828719 26436.38 722 701 182.6
D 12 218 139142 758.05 722 701 182.6
D 8 176 113648 618.45 722 701 182.6

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