ASTROSAT CZTI

Data Quality Report

Orbit 10697

Creation date: 2024-06-27T16:02:35.175732
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/AS1A03_097T01_9000001540_10697cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10697cztM0_level2_quad_clean.evt
Size (bytes)524,111,04083,969,280
Size499.8 MB 80.1 MB
Events in quadrant A3,003,181540,803
Events in quadrant B4,538,624530,388
Events in quadrant C2,825,535545,583
Events in quadrant D5,096,803504,799

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128382
B0174881
C0124301
D0193441

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6037480.795097%
B60374317.139308%
C6037160.265032%
D60373465.731324%

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 7397 6039 20 20 0.27% 0.33%
B 7397 6039 297 297 4.02% 4.92%
C 7397 6039 3 3 0.04% 0.05%
D 7397 6039 282 282 3.81% 4.67%

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 86418 583.51 729 716 146.9
A 15 239 47151 316.16 729 716 146.9
A 8 5 18935 124.05 729 716 146.9
B 4 239 1532208 11374.84 720 703 134.6
B 15 204 40584 296.21 720 703 134.6
B 0 214 39862 290.84 720 703 134.6
C 14 234 20313 118.28 719 724 165.6
C 13 61 5277 27.49 719 724 165.6
C 8 222 2071 8.13 719 724 165.6
D 2 14 922481 5579.95 691 673 165.2
D 2 16 512839 3100.28 691 673 165.2
D 10 199 378685 2288.21 691 673 165.2

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