ASTROSAT CZTI

Data Quality Report

Orbit 31434

Creation date: 2024-06-27T20:28:27.086309
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/AS1C06_005T01_9000004580_31434cztM0_level2.evt modeM0/AS1C06_005T01_9000004580_31434cztM0_level2_quad_clean.evt
Size (bytes)130,553,28028,440,000
Size124.5 MB 27.1 MB
Events in quadrant A687,937196,095
Events in quadrant B1,275,013190,417
Events in quadrant C752,237188,769
Events in quadrant D1,138,606178,947

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029131
B047681
C031301
D043361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A143000.000000%
B1430614.265734%
C1430342.377622%
D14301027.132867%

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 1430 1430 0 0 0.00% 0.00%
B 1430 1430 23 23 1.61% 1.61%
C 1430 1430 0 0 0.00% 0.00%
D 1430 1430 89 89 6.22% 6.22%

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 13 254 2935 73.03 178 175 37.8
A 3 137 1928 46.38 178 175 37.8
A 0 226 1539 36.09 178 175 37.8
B 6 159 387583 10914.65 175 171 35.5
B 12 1 117610 3308.64 175 171 35.5
B 4 80 38086 1068.19 175 171 35.5
C 3 233 42213 1024.08 167 168 41.1
C 14 238 36721 890.31 167 168 41.1
C 14 254 13575 326.55 167 168 41.1
D 13 249 247039 5728.63 160 156 43.1
D 1 52 140590 3258.61 160 156 43.1
D 8 195 108479 2513.51 160 156 43.1

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