ASTROSAT CZTI

Data Quality Report

Orbit 22623

Creation date: 2024-06-27T18:43:42.907944
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_112T01_9000003360_22623cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22623cztM0_level2_quad_clean.evt
Size (bytes)465,019,20081,440,640
Size443.5 MB 77.7 MB
Events in quadrant A3,346,127515,241
Events in quadrant B3,372,899522,884
Events in quadrant C3,405,916505,178
Events in quadrant D3,541,620494,475

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137981
B0138221
C0139131
D0145561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6138661.075269%
B6139721.172829%
C61391011.645219%
D6139731.189119%

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 7453 6139 0 0 0.00% 0.00%
B 7454 6140 0 0 0.00% 0.00%
C 7454 6140 0 0 0.00% 0.00%
D 7454 6140 9 9 0.12% 0.15%

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 10229 54.57 868 851 171.8
A 0 226 7611 39.34 868 851 171.8
A 3 137 6538 33.09 868 851 171.8
B 12 111 18054 108.47 854 836 158.7
B 0 197 16396 98.03 854 836 158.7
B 11 111 16089 96.09 854 836 158.7
C 14 238 136740 704.15 837 846 193.0
C 13 61 5745 25.38 837 846 193.0
C 10 22 5340 23.29 837 846 193.0
D 12 227 150355 738.51 851 832 202.5
D 1 52 79884 390.45 851 832 202.5
D 12 233 30842 148.22 851 832 202.5

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