ASTROSAT CZTI

Data Quality Report

Orbit 05806

Creation date: 2024-06-27T14:59:23.201806
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/AS1G06_089T01_9000000746_05806cztM0_level2.evt modeM0/AS1G06_089T01_9000000746_05806cztM0_level2_quad_clean.evt
Size (bytes)507,401,28080,660,160
Size483.9 MB 76.9 MB
Events in quadrant A4,950,493489,983
Events in quadrant B3,319,056509,329
Events in quadrant C3,168,215495,151
Events in quadrant D3,467,136473,808

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192873
B0141512
C0141132
D0148842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67953735.489330%
B67951622.384106%
C67951121.648271%
D67951482.178072%

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 7680 6796 135 135 1.76% 1.99%
B 7680 6796 1 1 0.01% 0.01%
C 7680 6796 1 1 0.01% 0.01%
D 7680 6796 17 17 0.22% 0.25%

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 79 1238580 7355.02 816 796 168.3
A 0 31 567763 3368.97 816 796 168.3
A 0 226 7894 42.18 816 796 168.3
B 15 204 55405 340.46 831 811 160.4
B 0 219 28127 170.35 831 811 160.4
B 12 111 15248 90.03 831 811 160.4
C 1 16 53261 283.64 797 799 185.0
C 13 61 6290 29.69 797 799 185.0
C 8 222 4591 20.5 797 799 185.0
D 8 195 228120 1149.73 799 773 197.7
D 4 95 61934 309.3 799 773 197.7
D 8 230 44403 220.64 799 773 197.7

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