ASTROSAT CZTI

Data Quality Report

Orbit 22247

Creation date: 2024-06-27T18:38:29.914912
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/AS1A07_018T02_9000003292_22247cztM0_level2.evt modeM0/AS1A07_018T02_9000003292_22247cztM0_level2_quad_clean.evt
Size (bytes)226,393,92032,512,320
Size215.9 MB 31.0 MB
Events in quadrant A1,504,957200,192
Events in quadrant B1,527,086205,351
Events in quadrant C1,649,862195,740
Events in quadrant D1,989,169189,303

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060981
B062271
C066051
D077871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2703401.479837%
B2703552.034776%
C27031023.773585%
D2703812.996670%

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 4068 2704 0 0 0.00% 0.00%
B 4068 2704 0 0 0.00% 0.00%
C 4068 2704 14 14 0.34% 0.52%
D 4068 2704 30 30 0.74% 1.11%

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 13 254 3812 43.37 390 383 79.1
A 0 226 3350 37.53 390 383 79.1
A 3 137 3119 34.6 390 383 79.1
B 12 111 8651 111.48 389 380 74.2
B 4 216 7611 97.46 389 380 74.2
B 11 111 7549 96.62 389 380 74.2
C 10 22 137461 1560.39 372 376 87.9
C 14 238 60415 683.4 372 376 87.9
C 0 10 3362 33.99 372 376 87.9
D 1 52 514475 5585.87 375 365 92.0
D 13 104 28858 309.58 375 365 92.0
D 13 172 24750 264.95 375 365 92.0

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