ASTROSAT CZTI

Data Quality Report

Orbit 14726

Creation date: 2024-06-27T16:59:09.295267
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/AS1G08_081T01_9000002178_14726cztM0_level2.evt modeM0/AS1G08_081T01_9000002178_14726cztM0_level2_quad_clean.evt
Size (bytes)79,315,20023,699,520
Size75.6 MB 22.6 MB
Events in quadrant A600,794158,766
Events in quadrant B573,090155,302
Events in quadrant C578,604152,508
Events in quadrant D558,034153,210

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026821
B026320
C026010
D027030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129830.231125%
B129800.000000%
C129800.000000%
D129800.000000%

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 1299 1299 2 2 0.15% 0.15%
B 1299 1299 0 0 0.00% 0.00%
C 1299 1299 0 0 0.00% 0.00%
D 1299 1299 1 1 0.08% 0.08%

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 12 189 36368 1199.2 137 134 30.2
A 8 15 25086 825.81 137 134 30.2
A 9 143 9292 303.09 137 134 30.2
B 0 229 17749 613.31 138 135 28.7
B 0 205 5831 198.33 138 135 28.7
B 0 230 4377 147.71 138 135 28.7
C 3 233 51701 1559.5 135 135 33.1
C 13 61 928 23.98 135 135 33.1
C 6 96 574 13.28 135 135 33.1
D 12 16 31186 923.3 133 128 33.6
D 13 238 9405 275.79 133 128 33.6
D 15 0 5171 149.92 133 128 33.6

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