ASTROSAT CZTI

Data Quality Report

Orbit 28097

Creation date: 2024-06-27T19:48:01.492496
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_057T05_9000004060_28097cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28097cztM0_level2_quad_clean.evt
Size (bytes)568,391,04089,095,680
Size542.1 MB 85.0 MB
Events in quadrant A3,494,282585,408
Events in quadrant B3,468,052579,739
Events in quadrant C3,564,604553,381
Events in quadrant D6,255,610535,262

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139780
B0138500
C0142060
D0231440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6371831.302778%
B63721111.741996%
C63721292.024482%
D637267810.640301%

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 7611 6372 0 0 0.00% 0.00%
B 7612 6373 21 21 0.28% 0.33%
C 7612 6373 7 7 0.09% 0.11%
D 7612 6373 562 562 7.38% 8.82%

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 13 110315 634.99 877 864 172.4
A 13 254 11355 60.86 877 864 172.4
A 3 137 7891 40.77 877 864 172.4
B 5 255 98127 611.19 848 828 159.2
B 0 183 19969 120.23 848 828 159.2
B 12 111 18810 112.95 848 828 159.2
C 3 233 209898 1088.69 825 830 192.0
C 14 238 137293 710.61 825 830 192.0
C 13 61 5606 24.87 825 830 192.0
D 1 52 1843967 9549.26 813 792 193.0
D 8 195 597443 3091.17 813 792 193.0
D 12 1 471481 2438.58 813 792 193.0

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