ASTROSAT CZTI

Data Quality Report

Orbit 29439

Creation date: 2024-06-27T20:04:08.700185
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/AS1A10_110T02_9000004234_29439cztM0_level2.evt modeM0/AS1A10_110T02_9000004234_29439cztM0_level2_quad_clean.evt
Size (bytes)519,589,44063,601,920
Size495.5 MB 60.7 MB
Events in quadrant A2,498,390403,588
Events in quadrant B2,538,314414,780
Events in quadrant C6,362,131368,603
Events in quadrant D3,991,612381,395

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01062
B01060
C01064
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010765163
B010870175
C023138660
D015517183

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5113350.684530%
B5110390.763209%
C504794718.763622%
D51111673.267462%

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 6317 5185 0 0 0.00% 0.00%
B 6317 5176 0 0 0.00% 0.00%
C 6315 5163 375 375 5.94% 7.26%
D 6316 5184 95 95 1.50% 1.83%

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 9519 68.32 645 633 130.1
A 3 137 6096 42.0 645 633 130.1
A 0 226 5594 38.14 645 633 130.1
B 12 111 14815 116.17 640 625 122.1
B 11 111 13698 107.03 640 625 122.1
B 14 111 12629 98.27 640 625 122.1
C 3 233 3979122 29347.13 581 585 135.6
C 14 238 96386 706.66 581 585 135.6
C 2 114 11334 79.29 581 585 135.6
D 13 104 857619 5831.71 613 597 147.0
D 1 52 441624 3001.02 613 597 147.0
D 8 195 168204 1140.5 613 597 147.0

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