ASTROSAT CZTI

Data Quality Report

Orbit 16066

Creation date: 2024-06-27T17:17:27.639245
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/AS1A04_230T01_9000002374_16066cztM0_level2.evt modeM0/AS1A04_230T01_9000002374_16066cztM0_level2_quad_clean.evt
Size (bytes)457,277,76098,493,120
Size436.1 MB 93.9 MB
Events in quadrant A3,316,996666,135
Events in quadrant B3,403,927659,464
Events in quadrant C3,055,229620,860
Events in quadrant D3,663,454615,686

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134982
B0138931
C0126361
D0147831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6025891.477178%
B60251181.958506%
C6025971.609959%
D60252263.751037%

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 7321 6026 0 0 0.00% 0.00%
B 7321 6026 23 23 0.31% 0.38%
C 7321 6026 0 0 0.00% 0.00%
D 7320 6025 117 117 1.60% 1.94%

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 80 274557 1751.2 786 771 156.3
A 9 143 10948 65.09 786 771 156.3
A 0 226 7169 40.92 786 771 156.3
B 7 220 129454 890.11 778 762 144.6
B 0 189 56736 387.15 778 762 144.6
B 0 190 37823 256.33 778 762 144.6
C 14 238 115931 669.6 742 749 172.0
C 3 233 27599 156.09 742 749 172.0
C 0 207 16357 90.74 742 749 172.0
D 7 38 286154 1544.88 759 738 184.7
D 1 52 178648 962.98 759 738 184.7
D 12 218 149020 802.61 759 738 184.7

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