ASTROSAT CZTI

Data Quality Report

Orbit 11665

Creation date: 2024-06-27T16:16:47.912524
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/AS1T01_207T01_9000001720_11665cztM0_level2.evt modeM0/AS1T01_207T01_9000001720_11665cztM0_level2_quad_clean.evt
Size (bytes)541,653,12082,874,880
Size516.6 MB 79.0 MB
Events in quadrant A5,411,670512,993
Events in quadrant B4,067,623540,126
Events in quadrant C2,879,663537,880
Events in quadrant D3,649,308510,371

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201333
B0156291
C0120731
D0145151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A583565411.208226%
B58353936.735219%
C5835240.411311%
D58352073.547558%

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 7122 5837 436 436 6.12% 7.47%
B 7122 5838 234 234 3.29% 4.01%
C 7122 5838 0 0 0.00% 0.00%
D 7122 5838 135 135 1.90% 2.31%

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 8 5 2265316 15922.63 709 696 142.2
A 1 162 155013 1085.01 709 696 142.2
A 1 178 89534 624.62 709 696 142.2
B 3 64 821245 6125.32 718 701 134.0
B 4 239 288925 2151.58 718 701 134.0
B 15 204 66572 491.72 718 701 134.0
C 13 61 5507 28.39 738 743 167.8
C 14 234 2344 9.54 738 743 167.8
C 3 202 1898 6.88 738 743 167.8
D 13 104 603393 3577.32 719 702 168.5
D 13 137 151819 896.97 719 702 168.5
D 5 222 45826 267.84 719 702 168.5

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