ASTROSAT CZTI

Data Quality Report

Orbit 47450

Creation date: 2024-07-07T08:23:27.664585
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/AS1A13_089T01_9000006330_47450cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47450cztM0_level2_quad_clean.evt
Size (bytes)514,336,320118,108,800
Size490.5 MB 112.6 MB
Events in quadrant A7,356,113767,513
Events in quadrant B4,104,341795,432
Events in quadrant C3,354,076781,083
Events in quadrant D3,649,669715,862

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267751
B0172011
C0154421
D0163401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74122343.157043%
B74122643.561792%
C7412160.215866%
D7412500.674582%

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 7432 7413 5 5 0.07% 0.07%
B 7432 7413 99 99 1.33% 1.34%
C 7432 7413 5 5 0.07% 0.07%
D 7432 7413 30 30 0.40% 0.40%

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 10 83 3820739 21658.09 840 819 176.4
A 9 191 260402 1471.78 840 819 176.4
A 2 79 14104 75.32 840 819 176.4
B 5 32 679289 4020.52 843 814 168.8
B 0 198 26856 154.32 843 814 168.8
B 12 111 21968 125.35 843 814 168.8
C 3 233 78638 391.44 836 840 198.7
C 1 3 9775 44.96 836 840 198.7
C 12 250 6108 26.51 836 840 198.7
D 2 249 318059 1508.65 828 802 210.3
D 12 2 48968 229.04 828 802 210.3
D 2 234 39827 185.58 828 802 210.3

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