ASTROSAT CZTI

Data Quality Report

Orbit 10954

Creation date: 2024-06-27T16:06:10.156618
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/AS1G08_037T01_9000001588_10954cztM0_level2.evt modeM0/AS1G08_037T01_9000001588_10954cztM0_level2_quad_clean.evt
Size (bytes)320,961,60043,424,640
Size306.1 MB 41.4 MB
Events in quadrant A2,351,945262,828
Events in quadrant B2,753,102264,318
Events in quadrant C1,826,145263,283
Events in quadrant D2,519,950245,457

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094431
B0106671
C080331
D0100421

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3944461.166329%
B39442315.856998%
C3944100.253550%
D39441443.651116%

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 3944 3944 22 22 0.56% 0.56%
B 3944 3944 125 125 3.17% 3.17%
C 3944 3944 0 0 0.00% 0.00%
D 3944 3944 116 116 2.94% 2.94%

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 5 331065 3331.56 485 476 99.2
A 8 15 147483 1481.48 485 476 99.2
A 11 29 6806 63.79 485 476 99.2
B 4 239 829667 9057.15 479 469 91.6
B 0 214 24955 267.46 479 469 91.6
B 0 219 10792 112.76 479 469 91.6
C 13 61 3466 27.79 467 471 107.8
C 8 222 1396 8.58 467 471 107.8
C 14 234 1360 8.25 467 471 107.8
D 1 52 243521 2172.51 459 446 111.9
D 10 253 138273 1231.85 459 446 111.9
D 13 249 137162 1221.92 459 446 111.9

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