ASTROSAT CZTI

Data Quality Report

Orbit 08522

Creation date: 2024-06-27T15:33:48.763484
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/AS1G07_060T01_9000001200_08522cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08522cztM0_level2_quad_clean.evt
Size (bytes)423,970,56087,220,800
Size404.3 MB 83.2 MB
Events in quadrant A3,036,858551,081
Events in quadrant B3,460,493551,585
Events in quadrant C2,884,281552,157
Events in quadrant D3,018,045535,085

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137103
B0147622
C0132012
D0137902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6469330.510125%
B64691322.040501%
C6469100.154583%
D6469150.231875%

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 7574 6470 11 11 0.15% 0.17%
B 7574 6470 78 78 1.03% 1.21%
C 7574 6470 0 0 0.00% 0.00%
D 7574 6470 6 6 0.08% 0.09%

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 5 16 62068 403.49 748 732 152.0
A 15 236 51452 333.66 748 732 152.0
A 8 5 28977 185.81 748 732 152.0
B 10 16 436048 3072.6 748 729 141.7
B 4 173 32764 226.11 748 729 141.7
B 0 214 28367 195.08 748 729 141.7
C 8 128 5547 28.21 737 739 170.4
C 13 61 5488 27.86 737 739 170.4
C 8 112 2616 11.01 737 739 170.4
D 1 52 216868 1210.28 728 711 178.6
D 2 234 21364 115.64 728 711 178.6
D 9 64 10403 54.27 728 711 178.6

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