ASTROSAT CZTI

Data Quality Report

Orbit 23493

Creation date: 2024-06-27T18:55:10.685531
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_100T02_9000003476_23493cztM0_level2.evt modeM0/AS1A07_100T02_9000003476_23493cztM0_level2_quad_clean.evt
Size (bytes)518,569,920108,803,520
Size494.5 MB 103.8 MB
Events in quadrant A3,117,771734,972
Events in quadrant B3,855,818741,154
Events in quadrant C3,628,722717,409
Events in quadrant D4,696,384683,145

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126701
B0151961
C0143821
D0178121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5989440.734680%
B59901542.570952%
C59901692.821369%
D59904858.096828%

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 7324 5989 0 0 0.00% 0.00%
B 7325 5991 96 96 1.31% 1.60%
C 7325 5991 28 28 0.38% 0.47%
D 7325 5990 403 403 5.50% 6.73%

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 9931 57.13 808 793 160.0
A 0 226 6899 38.17 808 793 160.0
A 3 137 6069 32.98 808 793 160.0
B 5 172 381512 2646.64 794 776 143.9
B 0 189 187878 1300.62 794 776 143.9
B 0 228 52497 359.53 794 776 143.9
C 8 208 354699 1946.98 787 795 181.8
C 14 238 126519 691.66 787 795 181.8
C 2 16 36975 199.04 787 795 181.8
D 1 52 1573281 8558.0 771 752 183.7
D 13 172 68163 366.86 771 752 183.7
D 12 233 52724 282.84 771 752 183.7

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