ASTROSAT CZTI

Data Quality Report

Orbit 40663

Creation date: 2024-06-27T22:18:51.356264
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/AS1A12_029T02_9000005558_40663cztM0_level2.fits modeM0/AS1A12_029T02_9000005558_40663cztM0_level2_quad_clean.evt
Size (bytes)307,437,12086,653,440
Size293.2 MB 82.6 MB
Events in quadrant A2,702,867599,005
Events in quadrant B2,632,279620,050
Events in quadrant C2,419,047587,644
Events in quadrant D3,236,671467,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110243
B0110772
C0101912
D0131052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A498870.140337%
B4988420.842021%
C498870.140337%
D498867913.612670%

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 7050 4989 3 3 0.04% 0.06%
B 7050 4989 32 32 0.45% 0.64%
C 7050 4989 2 2 0.03% 0.04%
D 7049 4988 280 280 3.97% 5.61%

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 10 83 471090 4080.31 565 554 115.3
A 15 191 20826 175.79 565 554 115.3
A 13 6 15092 126.06 565 554 115.3
B 0 229 278573 2530.06 565 549 109.9
B 0 190 81114 733.15 565 549 109.9
B 4 171 26697 237.95 565 549 109.9
C 15 214 218779 1708.76 550 553 127.7
C 3 233 27394 210.17 550 553 127.7
C 0 10 14487 109.11 550 553 127.7
D 12 227 763150 6146.98 503 489 124.1
D 2 250 150891 1212.23 503 489 124.1
D 12 191 141396 1135.7 503 489 124.1

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