ASTROSAT CZTI

Data Quality Report

Orbit 04330

Creation date: 2024-06-27T14:40:28.747551
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_219T01_9000000540_04330cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04330cztM0_level2_quad_clean.evt
Size (bytes)798,252,48065,692,800
Size761.3 MB 62.6 MB
Events in quadrant A3,163,685446,152
Events in quadrant B13,944,527242,047
Events in quadrant C2,956,766432,335
Events in quadrant D3,677,438421,060

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139002
B0457471
C0134731
D0153641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6393901.407790%
B6393477174.628500%
C6393671.048021%
D6393961.501642%

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 7288 6393 16 16 0.22% 0.25%
B 7287 6392 4618 4618 63.37% 72.25%
C 7288 6394 16 16 0.22% 0.25%
D 7287 6393 67 67 0.92% 1.05%

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 13 251 161962 1044.18 750 734 154.4
A 0 13 74774 479.51 750 734 154.4
A 15 234 30260 191.22 750 734 154.4
B 3 0 11490408 118647.62 504 492 96.8
B 15 204 323181 3332.16 504 492 96.8
B 14 167 98705 1014.17 504 492 96.8
C 9 16 93925 549.05 719 723 169.8
C 9 247 42950 248.76 719 723 169.8
C 10 65 12672 70.39 719 723 169.8
D 12 79 465872 2677.5 718 697 173.7
D 2 136 133498 764.39 718 697 173.7
D 12 233 105642 604.05 718 697 173.7

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