ASTROSAT CZTI

Data Quality Report

Orbit 21105

Creation date: 2024-06-27T18:23:37.247083
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/AS1A05_163T01_9000003118_21105cztM0_level2.evt modeM0/AS1A05_163T01_9000003118_21105cztM0_level2_quad_clean.evt
Size (bytes)507,922,56084,631,680
Size484.4 MB 80.7 MB
Events in quadrant A3,109,176549,882
Events in quadrant B3,324,566559,803
Events in quadrant C3,317,515523,414
Events in quadrant D5,206,756492,530

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130582
B0136792
C0135922
D0199012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6268230.366943%
B6268691.100830%
C6268671.068922%
D62672103.350886%

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 7543 6269 0 0 0.00% 0.00%
B 7543 6269 3 3 0.04% 0.05%
C 7543 6269 0 0 0.00% 0.00%
D 7542 6268 139 139 1.84% 2.22%

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 13 254 10074 57.57 807 793 161.2
A 0 226 7106 39.16 807 793 161.2
A 3 137 6476 35.25 807 793 161.2
B 7 220 105668 687.58 811 794 152.5
B 12 111 17722 110.98 811 794 152.5
B 11 111 15751 98.06 811 794 152.5
C 7 221 183545 1015.88 772 777 179.9
C 14 238 122040 674.01 772 777 179.9
C 13 61 5311 25.2 772 777 179.9
D 1 20 1290893 7000.3 763 742 184.3
D 1 52 562338 3047.19 763 742 184.3
D 7 223 200520 1083.98 763 742 184.3

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