ASTROSAT CZTI

Data Quality Report

Orbit 17533

Creation date: 2024-06-27T17:37:42.948395
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/AS1T03_013T01_9000002598_17533cztM0_level2.evt modeM0/AS1T03_013T01_9000002598_17533cztM0_level2_quad_clean.evt
Size (bytes)560,491,200101,361,600
Size534.5 MB 96.7 MB
Events in quadrant A4,251,121653,779
Events in quadrant B4,067,792647,152
Events in quadrant C3,631,551625,166
Events in quadrant D4,509,335615,997

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177072
B0171282
C0156502
D0187172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75803624.775726%
B75801752.308707%
C75801481.952507%
D75793224.248582%

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 7800 7580 185 185 2.37% 2.44%
B 7800 7582 41 41 0.53% 0.54%
C 7800 7582 0 0 0.00% 0.00%
D 7799 7581 183 183 2.35% 2.41%

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 14 237 737067 4075.01 898 880 180.7
A 15 174 53362 290.5 898 880 180.7
A 0 226 7992 39.37 898 880 180.7
B 4 48 225379 1300.12 908 886 172.7
B 4 216 77416 443.21 908 886 172.7
B 7 220 68595 392.12 908 886 172.7
C 14 238 133733 647.46 873 878 205.2
C 3 233 70078 337.24 873 878 205.2
C 5 218 18134 84.1 873 878 205.2
D 13 168 633127 2950.0 880 852 214.3
D 13 189 258909 1204.01 880 852 214.3
D 5 222 75847 349.9 880 852 214.3

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