ASTROSAT CZTI

Data Quality Report

Orbit 30016

Creation date: 2024-06-27T20:09:55.685485
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/AS1A10_071T03_9000004314_30016cztM0_level2.evt modeM0/AS1A10_071T03_9000004314_30016cztM0_level2_quad_clean.evt
Size (bytes)522,264,96092,289,600
Size498.1 MB 88.0 MB
Events in quadrant A3,268,912594,032
Events in quadrant B5,215,821594,219
Events in quadrant C3,267,754567,424
Events in quadrant D3,602,111564,194

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139782
B0204922
C0139782
D0153443

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6811320.469828%
B6811590.866246%
C6811590.866246%
D6810170.249633%

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 7766 6812 4 4 0.05% 0.06%
B 7766 6812 5 5 0.06% 0.07%
C 7766 6812 0 0 0.00% 0.00%
D 7765 6811 7 7 0.09% 0.10%

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 8 192 33885 198.0 830 815 167.0
A 5 203 27317 158.67 830 815 167.0
A 13 254 12699 71.15 830 815 167.0
B 6 159 1948445 12222.75 820 801 159.3
B 10 247 27871 169.88 820 801 159.3
B 12 111 20148 121.42 820 801 159.3
C 14 238 132906 706.43 794 798 187.0
C 3 233 20418 104.91 794 798 187.0
C 2 114 15795 80.19 794 798 187.0
D 7 223 194103 1029.49 795 779 187.8
D 7 80 150760 798.68 795 779 187.8
D 8 195 143711 761.14 795 779 187.8

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