ASTROSAT CZTI

Data Quality Report

Orbit 13100

Creation date: 2024-06-27T16:36:19.128452
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/AS1C03_023T01_9000001930_13100cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13100cztM0_level2_quad_clean.evt
Size (bytes)507,867,84093,640,320
Size484.3 MB 89.3 MB
Events in quadrant A4,047,089590,053
Events in quadrant B4,138,067605,263
Events in quadrant C3,186,662607,580
Events in quadrant D3,562,849574,248

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162353
B0166172
C0136312
D0148702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65742553.878917%
B65741872.844539%
C6574290.441132%
D6574691.049589%

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 7785 6576 114 114 1.46% 1.73%
B 7785 6576 59 59 0.76% 0.90%
C 7785 6576 1 1 0.01% 0.02%
D 7785 6576 30 30 0.39% 0.46%

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 15 223 508714 3044.48 822 805 166.8
A 15 239 221982 1325.77 822 805 166.8
A 12 189 67417 399.28 822 805 166.8
B 5 32 377303 2406.17 824 804 156.5
B 4 239 223770 1424.96 824 804 156.5
B 3 64 217435 1384.47 824 804 156.5
C 14 234 7891 37.49 814 823 188.5
C 13 61 5894 26.9 814 823 188.5
C 12 4 5721 25.98 814 823 188.5
D 1 52 239764 1232.61 809 789 193.9
D 10 157 182141 935.4 809 789 193.9
D 14 34 33486 168.65 809 789 193.9

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