ASTROSAT CZTI

Data Quality Report

Orbit 17343

Creation date: 2024-06-27T17:35:14.458405
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/AS1A05_025T16_9000002560_17343cztM0_level2.evt modeM0/AS1A05_025T16_9000002560_17343cztM0_level2_quad_clean.evt
Size (bytes)499,743,360106,758,720
Size476.6 MB 101.8 MB
Events in quadrant A3,364,643700,379
Events in quadrant B3,473,007710,606
Events in quadrant C3,758,821665,409
Events in quadrant D4,043,491649,817

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150053
B0152172
C0160732
D0172492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7282350.480637%
B7283640.878759%
C72831962.691199%
D72831341.839901%

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 9172 7284 0 0 0.00% 0.00%
B 9173 7285 2 2 0.02% 0.03%
C 9173 7285 80 80 0.87% 1.10%
D 9173 7285 77 77 0.84% 1.06%

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 7484 37.76 872 854 175.6
A 10 1 7255 36.46 872 854 175.6
A 3 137 6756 33.62 872 854 175.6
B 12 111 20181 114.14 876 853 169.3
B 0 230 19844 112.15 876 853 169.3
B 11 111 17639 99.13 876 853 169.3
C 3 233 386488 1988.38 830 838 194.0
C 14 238 129168 661.66 830 838 194.0
C 13 61 6006 26.65 830 838 194.0
D 13 189 206503 1029.29 830 807 199.8
D 7 38 185312 923.25 830 807 199.8
D 10 70 132776 660.37 830 807 199.8

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