ASTROSAT CZTI

Data Quality Report

Orbit 47067

Creation date: 2024-10-15T16:51:48.192984
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/AS1C09_005T01_9000006296_47067cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47067cztM0_level2_quad_clean.evt
Size (bytes)432,518,40098,395,200
Size412.5 MB 93.8 MB
Events in quadrant A5,636,195656,063
Events in quadrant B3,118,079674,730
Events in quadrant C2,713,974657,408
Events in quadrant D4,086,091580,748

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01211
B01222
C01222
D01222

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020910252
B013297120
C012454121
D016312121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58671282.181694%
B5872841.430518%
C5878530.901667%
D58703576.081772%

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 7023 5875 27 27 0.38% 0.46%
B 7031 5882 39 39 0.55% 0.66%
C 7036 5891 31 31 0.44% 0.53%
D 7039 5884 297 297 4.22% 5.05%

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 3026954 22265.76 657 643 135.9
A 14 248 19733 140.45 657 643 135.9
A 13 248 17925 127.15 657 643 135.9
B 3 112 231151 1804.6 652 630 127.7
B 5 172 139203 1084.8 652 630 127.7
B 5 255 56422 436.76 652 630 127.7
C 12 249 81906 529.88 654 655 153.3
C 14 254 76341 493.58 654 655 153.3
C 12 250 5372 30.76 654 655 153.3
D 2 249 950634 5932.84 642 622 160.1
D 13 249 463105 2888.21 642 622 160.1
D 1 52 78924 489.0 642 622 160.1

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