ASTROSAT CZTI

Data Quality Report

Orbit 03559

Creation date: 2024-06-27T14:30:57.689178
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/AS1G05_045T01_9000000468_03559cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03559cztM0_level2_quad_clean.evt
Size (bytes)453,306,24091,120,320
Size432.3 MB 86.9 MB
Events in quadrant A2,966,624595,020
Events in quadrant B3,665,956590,055
Events in quadrant C3,565,802572,957
Events in quadrant D3,106,310566,274

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129932
B0149871
C0147921
D0136221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6244871.393338%
B62441051.681614%
C62441893.026906%
D62441422.274183%

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 7454 6244 0 0 0.00% 0.00%
B 7454 6244 21 21 0.28% 0.34%
C 7454 6244 75 75 1.01% 1.20%
D 7454 6244 70 70 0.94% 1.12%

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 3 1 23468 148.33 752 734 153.3
A 0 118 17315 108.19 752 734 153.3
A 0 50 16170 100.72 752 734 153.3
B 15 204 502580 3516.41 751 735 142.7
B 4 81 56475 390.57 751 735 142.7
B 0 244 27165 185.19 751 735 142.7
C 15 208 555540 3346.49 719 723 165.8
C 2 53 181580 1090.88 719 723 165.8
C 1 16 18886 109.55 719 723 165.8
D 7 39 96394 545.18 728 708 175.5
D 4 160 92274 521.71 728 708 175.5
D 13 239 31921 177.84 728 708 175.5

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