ASTROSAT CZTI

Data Quality Report

Orbit 43968

Creation date: 2024-06-27T22:57:47.923907
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_065T06_9000005924_43968cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43968cztM0_level2_quad_clean.evt
Size (bytes)476,504,64098,115,840
Size454.4 MB 93.6 MB
Events in quadrant A6,255,951611,324
Events in quadrant B3,160,984687,398
Events in quadrant C2,870,744669,486
Events in quadrant D4,889,705587,936

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230711
B0135141
C0126861
D0186043

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A594078913.282828%
B59411933.248611%
C5941390.656455%
D59403415.740741%

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 7025 5941 630 630 8.97% 10.60%
B 7026 5941 107 107 1.52% 1.80%
C 7026 5941 13 13 0.19% 0.22%
D 7025 5940 382 382 5.44% 6.43%

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 14 238 2092750 15110.99 662 648 138.4
A 10 83 927528 6694.74 662 648 138.4
A 15 223 625146 4510.67 662 648 138.4
B 5 172 320795 2366.64 681 660 135.3
B 0 213 53718 392.24 681 660 135.3
B 0 183 51411 375.18 681 660 135.3
C 14 254 96619 595.37 680 684 161.1
C 15 157 60352 370.3 680 684 161.1
C 3 233 35236 214.43 680 684 161.1
D 12 17 870674 5047.05 671 650 172.4
D 5 184 616521 3572.7 671 650 172.4
D 5 222 216269 1250.82 671 650 172.4

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