ASTROSAT CZTI

Data Quality Report

Orbit 04123

Creation date: 2024-06-27T14:37:42.716772
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_195T01_9000000530_04123cztM0_level2.evt modeM0/AS1G05_195T01_9000000530_04123cztM0_level2_quad_clean.evt
Size (bytes)480,614,40095,129,280
Size458.3 MB 90.7 MB
Events in quadrant A3,465,076621,724
Events in quadrant B3,532,205620,355
Events in quadrant C3,672,254598,649
Events in quadrant D3,451,438593,616

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145242
B0148071
C0155661
D0143681

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64011101.718481%
B6401711.109202%
C64012343.655679%
D64011001.562256%

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 7596 6402 45 45 0.59% 0.70%
B 7596 6402 6 6 0.08% 0.09%
C 7596 6402 142 142 1.87% 2.22%
D 7596 6402 16 16 0.21% 0.25%

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 0 199 205849 1313.54 767 751 156.1
A 0 50 143486 914.14 767 751 156.1
A 0 118 58838 372.01 767 751 156.1
B 15 204 349978 2370.64 773 756 147.3
B 10 16 38781 258.13 773 756 147.3
B 0 183 28137 185.87 773 756 147.3
C 9 144 823290 4888.21 724 728 168.3
C 13 61 6013 31.41 724 728 168.3
C 12 4 4723 23.74 724 728 168.3
D 2 37 480397 2727.39 733 711 175.9
D 12 233 52375 293.75 733 711 175.9
D 2 232 29682 164.72 733 711 175.9

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