ASTROSAT CZTI

Data Quality Report

Orbit 06992

Creation date: 2024-06-27T15:14:11.761700
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/AS1T01_151T01_9000000960_06992cztM0_level2.evt modeM0/AS1T01_151T01_9000000960_06992cztM0_level2_quad_clean.evt
Size (bytes)443,880,000100,350,720
Size423.3 MB 95.7 MB
Events in quadrant A3,241,719661,507
Events in quadrant B3,283,994662,154
Events in quadrant C3,012,992640,864
Events in quadrant D3,467,011626,151

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136734
B0137613
C0132503
D0142453

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64231432.226374%
B64231562.428772%
C6423931.447922%
D64231382.148529%

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 7603 6425 7 7 0.09% 0.11%
B 7603 6425 5 5 0.07% 0.08%
C 7603 6425 0 0 0.00% 0.00%
D 7603 6425 26 26 0.34% 0.40%

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 15 234 119224 721.72 808 791 164.1
A 0 226 7873 43.16 808 791 164.1
A 12 194 7405 40.31 808 791 164.1
B 0 228 41388 265.52 803 784 152.9
B 0 214 30994 197.55 803 784 152.9
B 0 219 30588 194.89 803 784 152.9
C 13 61 6038 29.74 770 777 176.9
C 1 16 3444 15.07 770 777 176.9
C 1 3 2736 11.07 770 777 176.9
D 8 195 229892 1213.7 780 755 188.8
D 14 34 143740 757.37 780 755 188.8
D 2 14 46297 241.23 780 755 188.8

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