ASTROSAT CZTI

Data Quality Report

Orbit 08447

Creation date: 2024-06-27T15:32:51.553865
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/AS1A03_074T01_9000001192_08447cztM0_level2.evt modeM0/AS1A03_074T01_9000001192_08447cztM0_level2_quad_clean.evt
Size (bytes)454,248,00097,467,840
Size433.2 MB 93.0 MB
Events in quadrant A3,224,821607,474
Events in quadrant B3,517,727619,797
Events in quadrant C3,125,616637,610
Events in quadrant D3,422,882609,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01402
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01433712
B01529430
C01402816
D0149409

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6852300.437828%
B68461061.548349%
C6850200.291971%
D6853550.802568%

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 7716 6857 0 0 0.00% 0.00%
B 7716 6857 26 26 0.34% 0.38%
C 7716 6857 0 0 0.00% 0.00%
D 7716 6857 24 24 0.31% 0.35%

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 14 111 79725 470.14 804 785 167.9
A 15 223 25332 146.19 804 785 167.9
A 13 14 9429 51.48 804 785 167.9
B 10 245 173009 1106.83 809 788 155.6
B 0 214 91734 584.49 809 788 155.6
B 4 81 70499 448.02 809 788 155.6
C 13 61 6046 28.01 800 803 187.2
C 14 67 2777 10.55 800 803 187.2
C 8 222 2620 9.71 800 803 187.2
D 1 52 170851 812.84 786 767 209.2
D 2 152 117430 557.54 786 767 209.2
D 2 14 75702 358.12 786 767 209.2

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