ASTROSAT CZTI

Data Quality Report

Orbit 47342

Creation date: 2024-06-30T03:04:39.798024
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_093T09_9000006320_47342cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47342cztM0_level2_quad_clean.evt
Size (bytes)663,791,04093,833,280
Size633.0 MB 89.5 MB
Events in quadrant A6,622,764673,254
Events in quadrant B3,305,063707,690
Events in quadrant C2,954,183684,558
Events in quadrant D11,202,633336,916

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239201
B0141121
C0131441
D0375903

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62832393.803915%
B6283600.954958%
C6283200.318319%
D6282318150.636740%

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 7328 6284 85 85 1.16% 1.35%
B 7328 6284 7 7 0.10% 0.11%
C 7328 6284 0 0 0.00% 0.00%
D 7327 6283 3087 3087 42.13% 49.13%

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 3641147 25301.81 690 674 143.9
A 9 191 237180 1643.75 690 674 143.9
A 15 235 29769 202.21 690 674 143.9
B 14 167 185525 1343.65 699 678 137.6
B 4 21 79427 572.43 699 678 137.6
B 0 183 67482 485.6 699 678 137.6
C 0 207 220515 1343.94 691 695 163.6
C 3 233 27331 162.85 691 695 163.6
C 12 2 4893 25.67 691 695 163.6
D 6 112 5999158 45376.92 516 499 132.2
D 12 2 2942083 22251.64 516 499 132.2
D 7 38 155443 1172.08 516 499 132.2

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