ASTROSAT CZTI

Data Quality Report

Orbit 10263

Creation date: 2024-06-27T15:57:02.636411
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/AS1A03_052T01_9000001480_10263cztM0_level2.evt modeM0/AS1A03_052T01_9000001480_10263cztM0_level2_quad_clean.evt
Size (bytes)608,719,680142,191,360
Size580.5 MB 135.6 MB
Events in quadrant A4,132,005941,933
Events in quadrant B4,278,870899,598
Events in quadrant C3,941,587921,370
Events in quadrant D5,511,859960,737

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0672482
B0672484
C0672486
D0649456

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06569248481
B07595758474
C06842051328
D08026257951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07549
B08761
C08761
D07448

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82431221.480044%
B78871341.698998%
C82861071.291335%
D90161211.342059%

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 12637 9686 0 0 0.00% 0.00%
B 12638 9446 1 1 0.01% 0.01%
C 12638 9684 0 0 0.00% 0.00%
D 12636 9767 6 6 0.05% 0.06%

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 15 50053 230.39 1056 1037 212.8
A 3 1 10633 45.1 1056 1037 212.8
A 0 226 9851 41.43 1056 1037 212.8
B 4 239 107723 564.96 999 979 188.9
B 11 51 94303 493.93 999 979 188.9
B 0 214 79091 413.42 999 979 188.9
C 13 61 7716 28.85 1010 1020 232.1
C 14 67 4117 13.35 1010 1020 232.1
C 3 202 2467 6.24 1010 1020 232.1
D 8 195 546188 1886.25 1104 1088 289.0
D 2 16 340260 1173.66 1104 1088 289.0
D 1 52 229840 791.57 1104 1088 289.0

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