ASTROSAT CZTI

Data Quality Report

Orbit 20240411_T05_194T01_9000006180_level2

Creation date: 2024-04-13T10:56:48.393362
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_194T01_9000006180cztM0_level2.fits modeM0/AS1T05_194T01_9000006180cztM0_level2_quad_clean.evt
Size (bytes)737,864,640915,261,120
Size703.7 MB 872.9 MB
Events in quadrant A4,400,7665,931,714
Events in quadrant B4,281,2205,980,075
Events in quadrant C4,217,5105,244,700
Events in quadrant D3,549,5424,677,222

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0990
B0990
C0990
D0990

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017460
B017460
C017460
D017460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02777110
B02234660
C02498520
D03022250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8585427953.255527%
B8585333423.892700%
C85855901010.494438%
D858551107812.903151%

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 95654 85849 0 0 0.00% 0.00%
B 95655 85838 0 0 0.00% 0.00%
C 95655 85793 0 0 0.00% 0.00%
D 95655 85460 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 7 110 3566 8.54 1144 1070 292.4
A 0 29 3401 7.97 1144 1070 292.4
A 15 236 3369 7.86 1144 1070 292.4
B 2 9 3955 12.76 1129 1073 225.9
B 2 8 3198 9.41 1129 1073 225.9
B 3 17 2971 8.4 1129 1073 225.9
C 3 203 3242 7.64 1116 1037 288.6
C 1 81 3225 7.58 1116 1037 288.6
C 3 202 3188 7.45 1116 1037 288.6
D 15 47 2667 6.13 1018 922 284.4
D 10 189 2614 5.95 1018 922 284.4
D 4 250 2586 5.85 1018 922 284.4

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