ASTROSAT CZTI

Data Quality Report

Orbit 27300

Creation date: 2024-06-27T19:38:35.857332
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/AS1T03_243T01_9000003918_27300cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27300cztM0_level2_quad_clean.evt
Size (bytes)495,483,840107,565,120
Size472.5 MB 102.6 MB
Events in quadrant A3,190,549744,454
Events in quadrant B3,232,069747,738
Events in quadrant C3,063,144692,128
Events in quadrant D5,126,257667,875

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131160
B0131330
C0126050
D0192220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58031322.274686%
B58031702.929519%
C58031432.464243%
D58034127.099776%

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 7113 5803 0 0 0.00% 0.00%
B 7113 5804 14 14 0.20% 0.24%
C 7113 5803 0 0 0.00% 0.00%
D 7113 5803 264 264 3.71% 4.55%

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 30002 179.9 815 803 162.3
A 13 248 13711 79.53 815 803 162.3
A 13 254 9690 54.75 815 803 162.3
B 10 245 101728 677.19 796 779 149.1
B 12 111 17324 110.99 796 779 149.1
B 11 111 15442 98.36 796 779 149.1
C 14 238 124858 712.1 753 760 174.3
C 13 61 5223 25.61 753 760 174.3
C 15 208 2471 9.82 753 760 174.3
D 1 52 1688983 9038.21 756 741 186.8
D 12 233 308856 1649.53 756 741 186.8
D 12 227 117502 625.09 756 741 186.8

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