ASTROSAT CZTI

Data Quality Report

Orbit 10361

Creation date: 2024-06-27T15:58:21.896487
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/AS1G07_048T01_9000001494_10361cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10361cztM0_level2_quad_clean.evt
Size (bytes)1,744,580,160304,479,360
Size1.6 GB 290.4 MB
Events in quadrant A11,378,8931,919,895
Events in quadrant B11,912,8931,809,169
Events in quadrant C11,287,5211,910,145
Events in quadrant D16,532,3831,834,437

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014310891650
B0167403115547
C014988598350
D0207589140915

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011968
B013684
C013684
D011866

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01492922
B01492920
C01492920
D01425856

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25334950.374990%
B241671500.620681%
C25437640.251602%
D264092300.870915%

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 35606 29646 0 0 0.00% 0.00%
B 35605 28706 1 1 0.00% 0.00%
C 35606 29627 0 0 0.00% 0.00%
D 35605 28840 59 59 0.17% 0.20%

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 26831 40.3 2947 2886 594.2
A 12 194 24218 35.9 2947 2886 594.2
A 13 253 14109 18.89 2947 2886 594.2
B 4 239 513350 965.18 2814 2747 529.0
B 0 214 173324 322.44 2814 2747 529.0
B 11 51 137286 254.32 2814 2747 529.0
C 14 234 34012 46.59 2881 2901 667.7
C 13 61 21481 27.83 2881 2901 667.7
C 14 67 11956 13.56 2881 2901 667.7
D 8 195 1819870 2610.88 2934 2857 695.9
D 1 20 1389387 1992.32 2934 2857 695.9
D 1 52 1157499 1659.11 2934 2857 695.9

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