ASTROSAT CZTI

Data Quality Report

Orbit 33058

Creation date: 2024-06-27T20:44:28.055432
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/AS1A11_080T01_9000004756_33058cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33058cztM0_level2_quad_clean.evt
Size (bytes)668,223,36084,735,360
Size637.3 MB 80.8 MB
Events in quadrant A2,600,270606,138
Events in quadrant B4,351,112581,809
Events in quadrant C3,930,623530,790
Events in quadrant D8,987,868466,198

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111493
B0163942
C0152042
D0304782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A543270.128866%
B54325069.315169%
C54325409.941090%
D5432228642.083947%

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 7165 5433 0 0 0.00% 0.00%
B 7165 5433 351 351 4.90% 6.46%
C 7165 5433 481 481 6.71% 8.85%
D 7164 5432 2232 2232 31.16% 41.09%

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 15 169 17667 128.52 659 646 132.4
A 13 6 17025 123.67 659 646 132.4
A 14 4 10546 74.75 659 646 132.4
B 5 172 1155929 9603.51 633 620 120.3
B 5 200 241737 2004.29 633 620 120.3
B 5 31 162558 1346.11 633 620 120.3
C 1 23 1312938 9439.9 594 601 139.0
C 0 10 210255 1508.08 594 601 139.0
C 7 221 39169 277.43 594 601 139.0
D 7 223 5463181 39700.14 526 517 137.6
D 8 195 532779 3868.24 526 517 137.6
D 2 250 383947 2786.59 526 517 137.6

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