ASTROSAT CZTI

Data Quality Report

Orbit 33315

Creation date: 2024-06-27T20:47:24.452606
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/AS1T04_072T01_9000004780_33315cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33315cztM0_level2_quad_clean.evt
Size (bytes)442,483,20059,212,800
Size422.0 MB 56.5 MB
Events in quadrant A3,001,802369,188
Events in quadrant B3,196,782366,477
Events in quadrant C3,217,589358,373
Events in quadrant D3,648,065350,695

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122251
B0127801
C0126161
D0145691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49571082.178737%
B49571863.752270%
C4957901.815614%
D4957601.210410%

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 4957 4957 24 24 0.48% 0.48%
B 4957 4957 106 106 2.14% 2.14%
C 4957 4957 81 81 1.63% 1.63%
D 4957 4957 41 41 0.83% 0.83%

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 728949 6182.81 579 566 117.8
A 15 47 25322 210.13 579 566 117.8
A 13 254 6954 54.22 579 566 117.8
B 5 172 525337 4778.57 570 556 109.8
B 0 219 317914 2889.81 570 556 109.8
B 5 173 43988 395.48 570 556 109.8
C 10 49 441701 3387.48 560 564 130.2
C 15 214 224939 1722.97 560 564 130.2
C 1 23 179926 1377.32 560 564 130.2
D 8 195 1082296 7403.0 559 545 146.1
D 13 249 132063 900.05 559 545 146.1
D 12 233 83676 568.91 559 545 146.1

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