ASTROSAT CZTI

Data Quality Report

Orbit 14265

Creation date: 2024-06-27T16:52:40.044781
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/AS1G08_014T01_9000002104_14265cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14265cztM0_level2_quad_clean.evt
Size (bytes)725,725,44072,792,000
Size692.1 MB 69.4 MB
Events in quadrant A3,446,767467,779
Events in quadrant B3,577,637466,345
Events in quadrant C3,432,819440,292
Events in quadrant D11,057,530351,019

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145463
B0149862
C0144222
D0376392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68531101.605136%
B68531692.466073%
C6853630.919305%
D6853279740.814242%

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 7594 6856 2 2 0.03% 0.03%
B 7594 6856 8 8 0.11% 0.12%
C 7594 6856 0 0 0.00% 0.00%
D 7594 6856 2062 2062 27.15% 30.08%

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 12 189 88869 515.72 844 825 170.7
A 8 15 64207 371.26 844 825 170.7
A 11 29 39681 227.6 844 825 170.7
B 0 229 126489 784.13 836 814 160.3
B 10 245 75655 466.96 836 814 160.3
B 0 189 26058 157.51 836 814 160.3
C 3 233 279591 1480.01 807 808 188.4
C 13 61 5929 27.19 807 808 188.4
C 10 22 3872 16.27 807 808 188.4
D 13 122 6359300 36875.81 709 692 172.4
D 12 110 996681 5776.09 709 692 172.4
D 5 222 433557 2510.34 709 692 172.4

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