ASTROSAT CZTI

Data Quality Report

Orbit 45559

Creation date: 2024-06-27T23:13:36.617942
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_093T11_9000006108_45559cztM0_level2.fits modeM0/AS1A13_093T11_9000006108_45559cztM0_level2_quad_clean.evt
Size (bytes)458,769,600114,822,720
Size437.5 MB 109.5 MB
Events in quadrant A6,254,821757,877
Events in quadrant B3,410,306798,977
Events in quadrant C3,070,097758,670
Events in quadrant D3,726,413693,975

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232202
B0145182
C0137882
D0157172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67003595.358209%
B67001311.955224%
C6700570.850746%
D67001612.402985%

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 7820 6701 110 110 1.41% 1.64%
B 7820 6701 39 39 0.50% 0.58%
C 7820 6701 1 1 0.01% 0.01%
D 7820 6701 92 92 1.18% 1.37%

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 2671004 16684.56 778 760 160.0
A 10 248 300975 1875.84 778 760 160.0
A 13 248 270393 1684.76 778 760 160.0
B 5 172 232471 1524.62 779 755 152.0
B 0 183 45029 291.31 779 755 152.0
B 12 111 19163 121.12 779 755 152.0
C 12 2 32994 179.17 771 773 179.8
C 14 254 19486 104.06 771 773 179.8
C 9 237 9181 46.75 771 773 179.8
D 12 233 254754 1323.86 770 745 191.9
D 5 171 215028 1116.81 770 745 191.9
D 13 249 91198 471.43 770 745 191.9

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