ASTROSAT CZTI

Data Quality Report

Orbit 16011

Creation date: 2024-06-27T17:16:46.481586
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/AS1T02_090T01_9000002364_16011cztM0_level2.evt modeM0/AS1T02_090T01_9000002364_16011cztM0_level2_quad_clean.evt
Size (bytes)479,761,92099,789,120
Size457.5 MB 95.2 MB
Events in quadrant A3,327,941647,946
Events in quadrant B3,544,474655,703
Events in quadrant C3,452,143634,750
Events in quadrant D3,753,388619,865

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139403
B0146472
C0142342
D0154982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6656300.450721%
B6656881.322115%
C6656821.231971%
D66561942.914663%

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 7592 6658 2 2 0.03% 0.03%
B 7592 6658 18 18 0.24% 0.27%
C 7592 6658 0 0 0.00% 0.00%
D 7592 6657 109 109 1.44% 1.64%

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 15 174 14976 80.6 854 839 175.4
A 14 235 11192 59.03 854 839 175.4
A 12 96 9691 50.47 854 839 175.4
B 0 245 53676 322.38 857 837 163.9
B 0 228 48412 290.26 857 837 163.9
B 0 190 26586 157.1 857 837 163.9
C 14 238 127657 658.62 826 834 192.6
C 3 233 102188 526.35 826 834 192.6
C 13 61 5809 25.84 826 834 192.6
D 12 218 495126 2417.67 825 801 204.5
D 2 152 51544 248.17 825 801 204.5
D 5 32 27493 130.54 825 801 204.5

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