ASTROSAT CZTI

Data Quality Report

Orbit 05012

Creation date: 2024-06-27T14:50:10.043127
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/AS1T01_132T01_9000000636_05012cztM0_level2.evt modeM0/AS1T01_132T01_9000000636_05012cztM0_level2_quad_clean.evt
Size (bytes)917,308,800133,801,920
Size874.8 MB 127.6 MB
Events in quadrant A6,265,305798,707
Events in quadrant B7,022,892797,371
Events in quadrant C5,917,153792,630
Events in quadrant D7,697,818767,465

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274584
B0294783
C0267663
D03223610

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129622431.874711%
B129622732.106156%
C12962900.694337%
D129614523.487385%

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 13677 12965 27 27 0.20% 0.21%
B 13677 12965 12 12 0.09% 0.09%
C 13677 12965 1 1 0.01% 0.01%
D 13677 12965 321 321 2.35% 2.48%

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 4 2 222967 716.12 1513 1475 309.3
A 13 251 141037 451.23 1513 1475 309.3
A 0 50 33451 103.38 1513 1475 309.3
B 8 3 540928 1874.78 1517 1478 287.7
B 15 204 248618 858.9 1517 1478 287.7
B 0 219 140913 484.59 1517 1478 287.7
C 1 16 157868 461.9 1468 1476 338.6
C 13 61 11893 30.77 1468 1476 338.6
C 9 54 10380 26.3 1468 1476 338.6
D 2 33 1008853 2844.4 1457 1413 354.2
D 12 227 594366 1674.14 1457 1413 354.2
D 13 235 200117 561.02 1457 1413 354.2

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