ASTROSAT CZTI

Data Quality Report

Orbit 45527

Creation date: 2024-06-27T23:13:14.549633
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_071T01_9000006104_45527cztM0_level2.fits modeM0/AS1A13_071T01_9000006104_45527cztM0_level2_quad_clean.evt
Size (bytes)432,282,240103,996,800
Size412.3 MB 99.2 MB
Events in quadrant A5,318,972682,690
Events in quadrant B3,162,981708,880
Events in quadrant C3,079,645683,604
Events in quadrant D3,929,973615,926

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205991
B0140601
C0140201
D0162061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65631642.498857%
B65631552.361725%
C65621221.859189%
D65622183.322158%

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 7393 6564 3 3 0.04% 0.05%
B 7393 6563 19 19 0.26% 0.29%
C 7391 6562 31 31 0.42% 0.47%
D 7392 6562 87 87 1.18% 1.33%

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 2454381 16242.65 724 707 151.1
A 7 3 57072 373.12 724 707 151.1
A 15 174 14464 91.07 724 707 151.1
B 5 172 209384 1457.21 722 698 143.2
B 15 201 33697 230.42 722 698 143.2
B 0 155 33223 227.11 722 698 143.2
C 12 2 130851 765.6 719 722 170.0
C 14 254 103200 602.92 719 722 170.0
C 2 14 28705 164.64 719 722 170.0
D 13 249 495034 2787.3 710 686 177.4
D 5 222 351371 1977.28 710 686 177.4
D 1 52 117973 661.3 710 686 177.4

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