ASTROSAT CZTI

Data Quality Report

Orbit 42011

Creation date: 2024-06-27T22:35:42.723754
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/AS1A12_011T26_9000005732_42011cztM0_level2.fits modeM0/AS1A12_011T26_9000005732_42011cztM0_level2_quad_clean.evt
Size (bytes)356,270,40086,644,800
Size339.8 MB 82.6 MB
Events in quadrant A2,898,390600,027
Events in quadrant B2,643,455614,018
Events in quadrant C2,400,045592,842
Events in quadrant D4,859,119468,974

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115613
B0110152
C0100332
D0177562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4966100.201369%
B49661002.013693%
C496640.080548%
D496677115.525574%

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 7089 4967 4 4 0.06% 0.08%
B 7089 4967 89 89 1.26% 1.79%
C 7089 4967 0 0 0.00% 0.00%
D 7089 4967 656 656 9.25% 13.21%

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 10 83 541153 4585.36 576 564 117.9
A 12 189 64311 540.71 576 564 117.9
A 15 223 54000 453.25 576 564 117.9
B 0 186 190657 1732.86 571 556 109.7
B 0 190 107361 973.58 571 556 109.7
B 4 171 51161 461.29 571 556 109.7
C 15 214 211807 1636.26 557 561 129.1
C 15 111 8707 63.1 557 561 129.1
C 13 61 3716 24.44 557 561 129.1
D 2 249 1868958 14637.94 523 509 127.6
D 13 249 526399 4119.97 523 509 127.6
D 1 52 245609 1920.18 523 509 127.6

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