ASTROSAT CZTI

Data Quality Report

Orbit 43622

Creation date: 2024-06-27T22:53:47.943472
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/AS1A12_095T02_9000005892_43622cztM0_level2.fits modeM0/AS1A12_095T02_9000005892_43622cztM0_level2_quad_clean.evt
Size (bytes)1,120,155,84089,159,040
Size1.0 GB 85.0 MB
Events in quadrant A4,091,092742,695
Events in quadrant B5,313,148722,609
Events in quadrant C16,607,976314,809
Events in quadrant D14,936,803447,987

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166091
B0204721
C0539336
D0489371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66771512.261495%
B66776509.734911%
C6676609591.297184%
D6676542181.201318%

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 7252 6678 36 36 0.50% 0.54%
B 7252 6677 431 431 5.94% 6.45%
C 7250 6675 5926 5926 81.74% 88.78%
D 7250 6675 4932 4932 68.03% 73.89%

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 796041 5085.85 759 743 156.4
A 15 223 160400 1020.99 759 743 156.4
A 15 222 84241 533.96 759 743 156.4
B 5 235 1633812 11523.27 724 701 141.7
B 0 219 175394 1232.63 724 701 141.7
B 0 155 99327 695.9 724 701 141.7
C 15 174 5155127 63511.84 341 342 81.2
C 15 126 4191587 51640.12 341 342 81.2
C 15 142 3392284 41791.94 341 342 81.2
D 8 192 5236795 38303.09 509 490 136.7
D 4 216 2883984 21092.5 509 490 136.7
D 4 212 1361353 9954.59 509 490 136.7

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