ASTROSAT CZTI

Data Quality Report

Orbit 43714

Creation date: 2024-06-27T22:54:54.501026
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_003T01_9000005902_43714cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43714cztM0_level2_quad_clean.evt
Size (bytes)1,472,641,920181,523,520
Size1.4 GB 173.1 MB
Events in quadrant A17,938,1771,269,452
Events in quadrant B7,122,9331,367,144
Events in quadrant C13,195,1961,022,250
Events in quadrant D15,272,620953,265

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0623935
B0299632
C0480612
D0543022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1278112519.787967%
B127823742.925990%
C12782294223.016742%
D12782275121.522453%

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 13921 12783 448 448 3.22% 3.50%
B 13922 12784 169 169 1.21% 1.32%
C 13922 12782 2121 2121 15.23% 16.59%
D 13922 12784 2503 2503 17.98% 19.58%

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 15 222 9550520 33757.76 1377 1347 282.9
A 10 83 1496744 5286.45 1377 1347 282.9
A 15 223 846842 2988.95 1377 1347 282.9
B 5 235 1026261 3763.08 1398 1354 272.4
B 0 199 260272 950.65 1398 1354 272.4
B 5 255 107312 389.04 1398 1354 272.4
C 15 157 7399930 25595.54 1220 1225 289.1
C 3 233 698298 2411.5 1220 1225 289.1
C 15 158 134051 459.51 1220 1225 289.1
D 8 48 4082646 11343.49 1277 1251 359.8
D 7 80 2203739 6121.41 1277 1251 359.8
D 5 235 585260 1623.15 1277 1251 359.8

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