ASTROSAT CZTI

Data Quality Report

Orbit 24348

Creation date: 2024-06-27T19:05:02.649297
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/AS1A07_145T01_9000003594_24348cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24348cztM0_level2_quad_clean.evt
Size (bytes)639,342,72092,410,560
Size609.7 MB 88.1 MB
Events in quadrant A3,119,417599,282
Events in quadrant B3,226,747622,557
Events in quadrant C6,881,710571,064
Events in quadrant D5,704,106560,678

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133472
B0135672
C0249884
D0214382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6382400.626763%
B6382751.175180%
C63814917.694719%
D63813765.892493%

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 7572 6383 0 0 0.00% 0.00%
B 7572 6383 1 1 0.01% 0.02%
C 7571 6382 51 51 0.67% 0.80%
D 7571 6382 232 232 3.06% 3.64%

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 13 254 9373 52.61 809 794 163.1
A 3 137 7088 38.6 809 794 163.1
A 0 226 6878 37.31 809 794 163.1
B 0 190 26130 164.53 815 796 154.0
B 12 111 18851 117.26 815 796 154.0
B 11 111 16634 102.86 815 796 154.0
C 7 247 3628324 20316.84 768 772 178.5
C 14 238 123249 685.96 768 772 178.5
C 2 16 123214 685.76 768 772 178.5
D 8 195 1588965 8489.93 765 743 187.1
D 1 52 647590 3457.76 765 743 187.1
D 12 218 299690 1598.04 765 743 187.1

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