ASTROSAT CZTI

Data Quality Report

Orbit 07095

Creation date: 2024-06-27T15:15:31.562013
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/AS1A02_090T01_9000000970_07095cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07095cztM0_level2_quad_clean.evt
Size (bytes)482,195,52091,756,800
Size459.9 MB 87.5 MB
Events in quadrant A3,422,497575,444
Events in quadrant B3,646,830583,195
Events in quadrant C3,402,564574,649
Events in quadrant D3,644,361546,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147693
B0151692
C0147782
D0153452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71611892.639296%
B71612082.904622%
C71611261.759531%
D71611401.955034%

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 7730 7161 0 0 0.00% 0.00%
B 7730 7160 2 2 0.03% 0.03%
C 7730 7160 1 1 0.01% 0.01%
D 7730 7160 2 2 0.03% 0.03%

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 0 226 8293 40.98 882 861 181.4
A 12 194 7859 38.58 882 861 181.4
A 3 1 7802 38.27 882 861 181.4
B 0 219 111177 644.6 891 871 171.1
B 0 214 78761 455.17 891 871 171.1
B 12 111 17536 97.39 891 871 171.1
C 8 128 13592 63.2 861 867 201.3
C 4 254 8822 39.51 861 867 201.3
C 9 68 8692 38.86 861 867 201.3
D 1 20 178164 842.05 857 830 210.6
D 2 136 106599 502.23 857 830 210.6
D 5 97 49945 233.22 857 830 210.6

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