ASTROSAT CZTI

Data Quality Report

Orbit 44381

Creation date: 2024-06-27T23:02:53.187836
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/AS1A13_008T05_9000005996_44381cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44381cztM0_level2_quad_clean.evt
Size (bytes)1,523,335,680293,114,880
Size1.4 GB 279.5 MB
Events in quadrant A13,966,0651,986,248
Events in quadrant B10,000,9432,038,420
Events in quadrant C10,913,5071,918,049
Events in quadrant D20,024,0251,606,815

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03900
B03900
C03900
D03900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0578914
B0428024
C0462644
D0728754

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A192255002.600780%
B192255272.741222%
C192257714.010403%
D19225235712.260078%

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 20825 19227 119 119 0.57% 0.62%
B 20825 19227 174 174 0.84% 0.90%
C 20825 19226 527 527 2.53% 2.74%
D 20825 19226 2054 2054 9.86% 10.68%

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 10 83 4566904 10013.68 2190 2144 455.9
A 15 223 407387 888.98 2190 2144 455.9
A 13 248 406403 886.82 2190 2144 455.9
B 5 172 504534 1148.32 2188 2114 437.5
B 5 255 314594 714.2 2188 2114 437.5
B 0 190 139456 313.91 2188 2114 437.5
C 15 158 1612560 3191.1 2118 2125 504.7
C 14 254 389254 767.1 2118 2125 504.7
C 2 14 254285 499.66 2118 2125 504.7
D 1 52 4774235 9090.83 2060 1996 525.0
D 12 2 2381345 4532.52 2060 1996 525.0
D 5 222 1047374 1991.38 2060 1996 525.0

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