ASTROSAT CZTI

Data Quality Report

Orbit 33306

Creation date: 2024-06-27T20:47:17.982025
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/AS1T04_072T01_9000004780_33306cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33306cztM0_level2_quad_clean.evt
Size (bytes)515,828,16060,039,360
Size491.9 MB 57.3 MB
Events in quadrant A2,756,688383,176
Events in quadrant B4,340,524353,896
Events in quadrant C3,249,876367,138
Events in quadrant D4,919,272345,556

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111633
B0162662
C0130082
D0183712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A524880.152439%
B52485129.756098%
C5248561.067073%
D52482013.830030%

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 7220 5249 0 0 0.00% 0.00%
B 7220 5249 373 373 5.17% 7.11%
C 7220 5249 45 45 0.62% 0.86%
D 7220 5249 170 170 2.35% 3.24%

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 15 169 48733 347.1 699 690 138.4
A 13 254 8298 54.97 699 690 138.4
A 13 6 7918 52.22 699 690 138.4
B 5 172 1335460 10546.81 671 658 126.6
B 0 190 133112 1046.57 671 658 126.6
B 0 219 118231 928.99 671 658 126.6
C 15 214 244646 1629.56 660 665 149.7
C 10 49 138597 921.25 660 665 149.7
C 0 10 106263 705.29 660 665 149.7
D 8 195 1031727 6446.35 658 641 159.9
D 2 250 797257 4980.44 658 641 159.9
D 7 222 192824 1201.53 658 641 159.9

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