ASTROSAT CZTI

Data Quality Report

Orbit 01310

Creation date: 2024-06-27T14:10:47.511806
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/AS1G04_002T02_9000000230_01310cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01310cztM0_level2_quad_clean.evt
Size (bytes)1,273,426,56097,989,120
Size1.2 GB 93.4 MB
Events in quadrant A8,320,384649,770
Events in quadrant B8,914,562649,880
Events in quadrant C8,182,206627,602
Events in quadrant D12,705,248570,970

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295102
B0312561
C0290681
D0426661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6725640.951673%
B6725440.654275%
C6725150.223048%
D6725127318.929368%

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 7325 6726 345 345 4.71% 5.13%
B 7325 6726 526 526 7.18% 7.82%
C 7325 6725 189 189 2.58% 2.81%
D 7325 6725 2621 2621 35.78% 38.97%

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 0 128 321472 651.57 2040 2055 490.2
A 4 32 53640 105.23 2040 2055 490.2
A 12 133 37775 72.86 2040 2055 490.2
B 8 4 698156 1392.48 2119 2128 499.8
B 6 53 52667 101.11 2119 2128 499.8
B 12 52 38295 72.36 2119 2128 499.8
C 15 241 321543 579.61 1961 2032 551.3
C 9 52 109936 195.74 1961 2032 551.3
C 3 79 39252 67.52 1961 2032 551.3
D 13 169 5269071 9394.28 1808 1868 560.7
D 12 22 328855 583.19 1808 1868 560.7
D 10 84 211543 373.96 1808 1868 560.7

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