ASTROSAT CZTI

Data Quality Report

Orbit 26325

Creation date: 2024-06-27T19:27:29.627015
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/AS1A09_008T02_9000003796_26325cztM0_level2.evt modeM0/AS1A09_008T02_9000003796_26325cztM0_level2_quad_clean.evt
Size (bytes)559,814,40077,420,160
Size533.9 MB 73.8 MB
Events in quadrant A3,173,119487,398
Events in quadrant B3,166,354496,199
Events in quadrant C3,853,066466,178
Events in quadrant D6,326,855446,939

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137210
B0136040
C0154800
D0233870

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6415490.763835%
B6415410.639127%
C64132273.539685%
D641571611.161341%

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 7480 6415 0 0 0.00% 0.00%
B 7480 6415 0 0 0.00% 0.00%
C 7480 6415 66 66 0.88% 1.03%
D 7481 6416 595 595 7.95% 9.27%

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 6 16 60983 375.39 805 788 160.4
A 13 254 9802 56.21 805 788 160.4
A 3 137 7295 40.58 805 788 160.4
B 0 230 29632 189.69 803 783 152.1
B 12 111 17938 112.8 803 783 152.1
B 11 111 16058 100.44 803 783 152.1
C 3 233 604725 3419.6 758 763 176.6
C 14 238 125085 703.91 758 763 176.6
C 0 207 100788 566.34 758 763 176.6
D 1 52 2914944 16257.29 751 733 179.3
D 12 233 407878 2271.31 751 733 179.3
D 11 176 143508 796.49 751 733 179.3

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