ASTROSAT CZTI

Data Quality Report

Orbit 18932

Creation date: 2024-06-27T17:56:42.922795
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/AS1A05_163T01_9000002820_18932cztM0_level2.evt modeM0/AS1A05_163T01_9000002820_18932cztM0_level2_quad_clean.evt
Size (bytes)494,997,12087,416,640
Size472.1 MB 83.4 MB
Events in quadrant A3,269,313572,031
Events in quadrant B4,389,366574,123
Events in quadrant C3,116,649553,047
Events in quadrant D3,811,682531,902

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131911
B0167581
C0128111
D0151821

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5954330.554249%
B59545018.414511%
C5954731.226067%
D5954781.310044%

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 7314 5955 1 1 0.01% 0.02%
B 7314 5955 254 254 3.47% 4.27%
C 7314 5955 0 0 0.00% 0.00%
D 7314 5955 48 48 0.66% 0.81%

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 14 235 251674 1602.29 779 764 156.6
A 15 174 12736 76.45 779 764 156.6
A 13 254 8403 48.78 779 764 156.6
B 3 112 1346515 9661.16 746 730 139.3
B 7 220 50116 354.53 746 730 139.3
B 0 197 21321 147.82 746 730 139.3
C 3 233 122063 710.62 737 744 170.7
C 14 238 118091 687.36 737 744 170.7
C 13 61 5282 26.58 737 744 170.7
D 7 238 501356 2804.84 743 724 178.5
D 1 52 247397 1382.01 743 724 178.5
D 12 218 109553 609.72 743 724 178.5

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