ASTROSAT CZTI

Data Quality Report

Orbit 42111

Creation date: 2024-06-27T22:37:01.611886
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/AS1A12_044T22_9000005750_42111cztM0_level2.fits modeM0/AS1A12_044T22_9000005750_42111cztM0_level2_quad_clean.evt
Size (bytes)368,409,60089,953,920
Size351.3 MB 85.8 MB
Events in quadrant A5,090,204581,583
Events in quadrant B2,376,270637,911
Events in quadrant C2,586,523606,381
Events in quadrant D3,190,307543,485

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186522
B0103502
C0105512
D0129032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50643526.951027%
B5064270.533175%
C5064130.256714%
D50641893.732227%

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 7067 5065 279 279 3.95% 5.51%
B 7067 5065 13 13 0.18% 0.26%
C 7067 5065 6 6 0.08% 0.12%
D 7067 5065 167 167 2.36% 3.30%

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 2362272 20049.93 578 566 117.8
A 10 83 483447 4099.46 578 566 117.8
A 13 6 8138 64.28 578 566 117.8
B 5 255 44093 381.34 588 572 114.1
B 0 229 18170 154.2 588 572 114.1
B 12 111 14097 118.51 588 572 114.1
C 15 214 227943 1644.51 587 592 138.2
C 8 79 68839 493.65 587 592 138.2
C 13 61 3888 23.84 587 592 138.2
D 12 6 575572 4101.74 571 556 140.2
D 13 249 241929 1721.78 571 556 140.2
D 1 52 74620 528.32 571 556 140.2

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