ASTROSAT CZTI

Data Quality Report

Orbit 13582

Creation date: 2024-06-27T16:43:01.271477
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/AS1G08_047T01_9000002002_13582cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13582cztM0_level2_quad_clean.evt
Size (bytes)504,633,60090,717,120
Size481.3 MB 86.5 MB
Events in quadrant A3,202,579577,517
Events in quadrant B3,705,986581,359
Events in quadrant C3,434,705573,945
Events in quadrant D4,476,082538,365

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140651
B0154941
C0143941
D0180951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6831240.351339%
B68311041.522471%
C683190.131752%
D68313455.050505%

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 7167 6833 0 0 0.00% 0.00%
B 7167 6832 41 41 0.57% 0.60%
C 7167 6833 5 5 0.07% 0.07%
D 7167 6832 256 256 3.57% 3.75%

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 1 162 23827 136.49 820 801 168.7
A 4 2 10488 57.42 820 801 168.7
A 0 226 7481 39.6 820 801 168.7
B 3 64 252656 1593.33 816 794 158.1
B 0 190 108854 683.61 816 794 158.1
B 0 189 48827 303.87 816 794 158.1
C 3 233 330821 1806.73 788 793 182.7
C 14 234 22808 120.52 788 793 182.7
C 13 61 5812 27.48 788 793 182.7
D 5 222 1017921 5472.53 777 756 185.9
D 1 20 194714 1043.53 777 756 185.9
D 10 157 86134 459.35 777 756 185.9

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