ASTROSAT CZTI

Data Quality Report

Orbit 22712

Creation date: 2024-06-27T18:44:43.546553
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/AS1A08_007T01_9000003362_22712cztM0_level2.evt modeM0/AS1A08_007T01_9000003362_22712cztM0_level2_quad_clean.evt
Size (bytes)509,716,80082,025,280
Size486.1 MB 78.2 MB
Events in quadrant A3,469,163522,428
Events in quadrant B3,550,080525,138
Events in quadrant C3,484,770492,857
Events in quadrant D4,488,308486,323

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142862
B0144952
C0143972
D0177862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65501051.603053%
B65501111.694656%
C65501592.427481%
D65502553.893130%

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 6551 0 0 0.00% 0.00%
B 7800 6551 3 3 0.04% 0.05%
C 7800 6551 5 5 0.06% 0.08%
D 7800 6551 142 142 1.82% 2.17%

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 12548 66.98 893 878 174.2
A 0 226 7812 39.8 893 878 174.2
A 11 47 7388 37.36 893 878 174.2
B 0 245 30659 185.32 881 863 160.8
B 0 219 29351 177.19 881 863 160.8
B 12 111 17642 104.36 881 863 160.8
C 14 238 136468 706.06 840 843 192.1
C 9 54 60934 312.83 840 843 192.1
C 10 22 10899 52.35 840 843 192.1
D 12 233 455174 2212.75 859 836 205.3
D 12 227 375463 1824.53 859 836 205.3
D 1 52 223168 1082.82 859 836 205.3

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