ASTROSAT CZTI

Data Quality Report

Orbit 04287

Creation date: 2024-06-27T14:39:56.334969
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/AS1G05_256T01_9000000538_04287cztM0_level2.evt modeM0/AS1G05_256T01_9000000538_04287cztM0_level2_quad_clean.evt
Size (bytes)565,315,200101,831,040
Size539.1 MB 97.1 MB
Events in quadrant A3,121,254695,151
Events in quadrant B3,758,125670,304
Events in quadrant C2,764,866666,814
Events in quadrant D7,032,389594,849

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138252
B0157081
C0132511
D0256361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6542530.810150%
B65421291.971874%
C6542230.351574%
D6542166525.450932%

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 7302 6543 22 22 0.30% 0.34%
B 7302 6543 100 100 1.37% 1.53%
C 7302 6543 3 3 0.04% 0.05%
D 7302 6543 1073 1073 14.69% 16.40%

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 8 15 114053 767.39 726 710 147.7
A 15 234 89429 600.68 726 710 147.7
A 0 50 85804 576.13 726 710 147.7
B 14 167 710552 5117.34 725 708 138.7
B 10 16 104896 751.1 725 708 138.7
B 5 184 36643 259.06 725 708 138.7
C 15 224 13227 77.64 701 704 161.3
C 10 65 10461 60.49 701 704 161.3
C 13 61 5830 31.78 701 704 161.3
D 2 232 4030227 25880.43 642 623 155.7
D 2 136 176339 1128.55 642 623 155.7
D 4 95 143245 916.0 642 623 155.7

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