ASTROSAT CZTI

Data Quality Report

Orbit 07698

Creation date: 2024-06-27T15:22:50.348430
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_104T01_9000001060_07698cztM0_level2.evt modeM0/AS1G06_104T01_9000001060_07698cztM0_level2_quad_clean.evt
Size (bytes)454,538,88095,287,680
Size433.5 MB 90.9 MB
Events in quadrant A3,091,033612,287
Events in quadrant B3,296,171629,102
Events in quadrant C3,371,938601,440
Events in quadrant D3,547,860572,533

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137832
B0142582
C0142122
D0154302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6751300.444379%
B6751350.518442%
C6751420.622130%
D67511341.984891%

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 8566 6753 6 6 0.07% 0.09%
B 8566 6753 0 0 0.00% 0.00%
C 8566 6753 0 0 0.00% 0.00%
D 8566 6753 69 69 0.81% 1.02%

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 14521 84.78 791 775 162.1
A 13 248 9509 53.87 791 775 162.1
A 13 14 7932 44.14 791 775 162.1
B 0 219 106042 683.21 804 786 154.1
B 0 213 17879 110.95 804 786 154.1
B 12 111 14918 91.73 804 786 154.1
C 8 229 269656 1475.2 777 780 182.3
C 8 208 37346 200.62 777 780 182.3
C 9 68 16563 86.59 777 780 182.3
D 1 83 296188 1568.27 765 740 188.4
D 2 152 216546 1145.52 765 740 188.4
D 13 104 99241 522.85 765 740 188.4

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