ASTROSAT CZTI

Data Quality Report

Orbit 20230205_T05_086T01_9000005496_level2

Creation date: 2023-02-07T13:06:47.037072
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/AS1T05_086T01_9000005496cztM0_level2.fits modeM0/AS1T05_086T01_9000005496cztM0_level2_quad_clean.evt
Size (bytes)714,908,160880,263,360
Size681.8 MB 839.5 MB
Events in quadrant A4,387,0785,858,218
Events in quadrant B4,165,9485,790,421
Events in quadrant C3,979,0344,851,953
Events in quadrant D3,689,5704,737,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016140
B016160
C016160
D016170

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02980
B02970
C02980
D02970

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01914470
B01874640
C03016260
D02059950

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7908815161.916852%
B7913718532.341509%
C79035997012.614664%
D7910734734.390256%

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 109695 79138 0 0 0.00% 0.00%
B 109695 79229 0 0 0.00% 0.00%
C 109695 79055 0 0 0.00% 0.00%
D 109695 79168 0 0 0.00% 0.00%

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 14 188 5214 14.75 1141 1072 280.8
A 14 204 4185 11.09 1141 1072 280.8
A 7 110 3720 9.43 1141 1072 280.8
B 2 9 3645 12.07 1102 1052 214.9
B 3 80 3030 9.2 1102 1052 214.9
B 2 8 2861 8.42 1102 1052 214.9
C 1 81 3517 9.39 1051 987 269.5
C 1 80 3449 9.14 1051 987 269.5
C 3 203 3127 7.94 1051 987 269.5
D 7 3 2785 6.41 1054 957 285.0
D 6 67 2660 5.98 1054 957 285.0
D 6 231 2646 5.93 1054 957 285.0

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