ASTROSAT CZTI

Data Quality Report

Orbit 12312

Creation date: 2024-06-27T16:25:18.440308
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/AS1A04_183T02_9000001816_12312cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12312cztM0_level2_quad_clean.evt
Size (bytes)507,643,20096,992,640
Size484.1 MB 92.5 MB
Events in quadrant A3,990,907610,727
Events in quadrant B3,938,753619,004
Events in quadrant C3,264,797620,539
Events in quadrant D3,695,420590,617

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166423
B0163112
C0145382
D0158942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71311161.626700%
B71312012.818679%
C7131610.855420%
D71311081.514514%

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 8822 7134 5 5 0.06% 0.07%
B 8822 7134 56 56 0.63% 0.78%
C 8822 7134 0 0 0.00% 0.00%
D 8822 7134 53 53 0.60% 0.74%

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 1 162 226918 1285.91 852 833 175.8
A 1 178 132706 750.06 852 833 175.8
A 1 161 113405 640.28 852 833 175.8
B 4 239 447905 2700.27 853 831 165.6
B 3 64 56411 335.7 853 831 165.6
B 0 230 21208 123.07 853 831 165.6
C 13 61 6088 26.72 835 838 196.5
C 4 254 4824 20.28 835 838 196.5
C 8 128 3881 15.49 835 838 196.5
D 1 52 279624 1391.23 827 804 200.4
D 13 122 99459 492.26 827 804 200.4
D 8 195 45353 222.29 827 804 200.4

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