ASTROSAT CZTI

Data Quality Report

Orbit 05075

Creation date: 2024-06-27T14:50:57.583031
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/AS1G05_103T01_9000000642_05075cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05075cztM0_level2_quad_clean.evt
Size (bytes)516,726,72087,318,720
Size492.8 MB 83.3 MB
Events in quadrant A3,753,688539,171
Events in quadrant B3,492,732550,010
Events in quadrant C3,302,475539,233
Events in quadrant D4,600,656503,561

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162533
B0153412
C0150002
D0189722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73471351.837485%
B7347410.558051%
C7347260.353886%
D73472453.334694%

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 9072 7349 80 80 0.88% 1.09%
B 9072 7349 3 3 0.03% 0.04%
C 9072 7349 1 1 0.01% 0.01%
D 9072 7349 183 183 2.02% 2.49%

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 50 190595 1105.1 842 823 171.7
A 15 174 176210 1021.33 842 823 171.7
A 0 247 119578 691.54 842 823 171.7
B 4 48 51676 304.51 859 839 166.9
B 0 219 42379 248.82 859 839 166.9
B 15 204 30892 180.02 859 839 166.9
C 9 54 33465 168.39 831 837 193.8
C 1 16 20973 103.92 831 837 193.8
C 13 61 6885 31.21 831 837 193.8
D 13 235 484041 2423.23 814 789 199.4
D 12 233 212197 1060.09 814 789 199.4
D 2 136 162777 812.28 814 789 199.4

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