ASTROSAT CZTI

Data Quality Report

Orbit 13290

Creation date: 2024-06-27T16:38:51.970271
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/AS1T02_013T01_9000001976_13290cztM0_level2.fits modeM0/AS1T02_013T01_9000001976_13290cztM0_level2_quad_clean.evt
Size (bytes)482,060,160113,460,480
Size459.7 MB 108.2 MB
Events in quadrant A3,671,460839,345
Events in quadrant B6,367,875539,992
Events in quadrant C3,228,041829,797
Events in quadrant D4,046,589752,185

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153230
B0233940
C0140770
D0167530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6808340.499412%
B6808242135.561105%
C6808110.161575%
D6808711.042891%

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 7578 6809 0 0 0.00% 0.00%
B 7578 6808 981 981 12.95% 14.41%
C 7578 6809 3 3 0.04% 0.04%
D 7578 6809 59 59 0.78% 0.87%

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 8 15 457471 2697.51 821 805 169.3
A 9 143 23901 136.43 821 805 169.3
A 1 162 17827 100.55 821 805 169.3
B 4 239 4067595 38131.6 560 548 106.7
B 10 246 27819 255.69 560 548 106.7
B 0 214 22297 203.91 560 548 106.7
C 15 208 89294 471.81 805 813 187.5
C 13 61 5923 27.25 805 813 187.5
C 8 222 3110 12.25 805 813 187.5
D 5 222 544727 2826.79 790 767 192.4
D 13 249 169399 876.33 790 767 192.4
D 8 195 121848 629.22 790 767 192.4

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