ASTROSAT CZTI

Data Quality Report

Orbit 16288

Creation date: 2024-06-27T17:20:38.244294
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/AS1A05_225T04_9000002400_16288cztM0_level2.evt modeM0/AS1A05_225T04_9000002400_16288cztM0_level2_quad_clean.evt
Size (bytes)74,390,4006,670,080
Size70.9 MB 6.4 MB
Events in quadrant A489,62331,429
Events in quadrant B500,38931,651
Events in quadrant C499,70629,650
Events in quadrant D690,36629,779

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020511
B020550
C020590
D026870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A101920.196271%
B101910.098135%
C101990.883219%
D1019555.397448%

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 1020 1020 0 0 0.00% 0.00%
B 1020 1020 0 0 0.00% 0.00%
C 1020 1020 0 0 0.00% 0.00%
D 1020 1020 34 34 3.33% 3.33%

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 0 226 1134 36.34 127 124 27.8
A 12 194 1002 31.59 127 124 27.8
A 3 137 917 28.53 127 124 27.8
B 0 198 3085 111.2 126 122 26.6
B 12 111 2886 103.73 126 122 26.6
B 0 214 2701 96.79 126 122 26.6
C 14 238 20393 668.92 121 121 30.3
C 3 233 3595 114.63 121 121 30.3
C 0 207 2336 73.09 121 121 30.3
D 10 70 209968 6476.62 122 118 32.4
D 1 52 20037 614.76 122 118 32.4
D 2 234 4114 123.33 122 118 32.4

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