ASTROSAT CZTI

Data Quality Report

Orbit 09773

Creation date: 2024-06-27T15:50:29.384000
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_080T01_9000001392_09773cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09773cztM0_level2_quad_clean.evt
Size (bytes)475,416,00083,920,320
Size453.4 MB 80.0 MB
Events in quadrant A3,315,361508,575
Events in quadrant B3,691,960513,631
Events in quadrant C3,307,399516,176
Events in quadrant D3,591,149499,075

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148443
B0156592
C0148692
D0154084

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72311622.240354%
B72312263.125432%
C72311321.825474%
D72301522.102351%

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 7721 7232 0 0 0.00% 0.00%
B 7721 7232 30 30 0.39% 0.41%
C 7721 7232 0 0 0.00% 0.00%
D 7721 7232 9 9 0.12% 0.12%

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 7947 40.49 860 840 175.5
A 12 194 7051 35.38 860 840 175.5
A 3 137 3965 17.8 860 840 175.5
B 4 239 221075 1334.03 863 841 165.1
B 10 245 39119 231.86 863 841 165.1
B 12 111 18730 108.36 863 841 165.1
C 13 61 6268 27.5 846 850 197.0
C 8 222 3708 14.51 846 850 197.0
C 14 67 2829 10.04 846 850 197.0
D 8 195 102707 495.75 840 818 205.5
D 1 52 95090 458.68 840 818 205.5
D 7 46 76355 367.53 840 818 205.5

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