ASTROSAT CZTI

Data Quality Report

Orbit 05374

Creation date: 2024-06-27T14:54:30.903911
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_021T02_9000000680_05374cztM0_level2.evt modeM0/AS1G05_021T02_9000000680_05374cztM0_level2_quad_clean.evt
Size (bytes)522,915,84067,227,840
Size498.7 MB 64.1 MB
Events in quadrant A3,764,400375,039
Events in quadrant B3,742,768380,545
Events in quadrant C3,734,239382,006
Events in quadrant D4,072,679362,865

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165542
B0162341
C0161491
D0175951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76891892.458057%
B76891922.497074%
C76891491.937833%
D76892242.913253%

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 7689 7689 15 15 0.20% 0.20%
B 7689 7689 0 0 0.00% 0.00%
C 7689 7689 0 0 0.00% 0.00%
D 7689 7689 42 42 0.55% 0.55%

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 0 50 165836 866.43 913 891 190.4
A 15 174 85314 443.46 913 891 190.4
A 12 194 9051 42.86 913 891 190.4
B 4 81 64101 348.67 929 906 181.2
B 15 204 23838 126.53 929 906 181.2
B 15 54 19139 100.6 929 906 181.2
C 1 16 231170 1096.96 896 898 209.9
C 13 61 7539 31.64 896 898 209.9
C 12 4 3510 12.44 896 898 209.9
D 2 63 277821 1245.05 889 858 222.5
D 2 136 210473 942.29 889 858 222.5
D 4 95 108688 484.73 889 858 222.5

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