ASTROSAT CZTI

Data Quality Report

Orbit 13266

Creation date: 2024-06-27T16:38:33.940015
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_077T01_9000001970_13266cztM0_level2.evt modeM0/AS1G08_077T01_9000001970_13266cztM0_level2_quad_clean.evt
Size (bytes)944,524,800102,360,960
Size900.8 MB 97.6 MB
Events in quadrant A8,839,514666,939
Events in quadrant B10,567,955376,450
Events in quadrant C4,143,906718,253
Events in quadrant D4,420,045686,869

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0325652
B0376232
C0190372
D0199522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9365101410.827549%
B9365377240.277629%
C9365690.736786%
D93651261.345435%

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 9881 9367 678 678 6.86% 7.24%
B 9881 9365 2061 2061 20.86% 22.01%
C 9881 9367 3 3 0.03% 0.03%
D 9881 9367 59 59 0.60% 0.63%

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 15 239 4749009 22473.88 1039 1015 211.3
A 1 162 35009 160.91 1039 1015 211.3
A 8 15 29226 133.53 1039 1015 211.3
B 4 239 7539047 51836.93 749 729 145.4
B 0 214 39517 266.72 749 729 145.4
B 4 142 28030 187.73 749 729 145.4
C 15 208 31815 127.35 1046 1050 241.6
C 6 96 13009 49.5 1046 1050 241.6
C 8 128 9075 33.22 1046 1050 241.6
D 1 52 389858 1553.31 1038 1008 250.3
D 5 222 61834 242.98 1038 1008 250.3
D 2 234 37312 145.02 1038 1008 250.3

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