ASTROSAT CZTI

Data Quality Report

Orbit 37392

Creation date: 2024-06-27T21:39:23.736669
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/AS1C07_001T01_9000005320_37392cztM0_level2.evt modeM0/AS1C07_001T01_9000005320_37392cztM0_level2_quad_clean.evt
Size (bytes)433,644,48095,123,520
Size413.6 MB 90.7 MB
Events in quadrant A2,569,040651,354
Events in quadrant B2,702,724658,153
Events in quadrant C2,469,936639,704
Events in quadrant D5,054,382583,396

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106273
B0111592
C0103402
D0185692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4962110.221685%
B4962761.531640%
C4962170.342604%
D49623507.053607%

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 7055 4963 8 8 0.11% 0.16%
B 7055 4963 53 53 0.75% 1.07%
C 7055 4963 13 13 0.18% 0.26%
D 7055 4963 305 305 4.32% 6.15%

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 270972 2362.54 569 559 114.5
A 9 143 35803 307.92 569 559 114.5
A 12 227 16074 135.55 569 559 114.5
B 5 172 159113 1477.42 562 548 107.3
B 0 190 106167 984.1 562 548 107.3
B 4 232 83493 772.83 562 548 107.3
C 15 214 215961 1727.03 543 547 124.7
C 0 10 55062 437.06 543 547 124.7
C 1 23 45150 357.59 543 547 124.7
D 12 235 1545809 12108.14 529 513 127.6
D 12 227 461395 3611.23 529 513 127.6
D 2 249 433607 3393.5 529 513 127.6

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