ASTROSAT CZTI

Data Quality Report

Orbit 21289

Creation date: 2024-06-27T18:25:58.399624
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/AS1T03_140T01_9000003142_21289cztM0_level2.evt modeM0/AS1T03_140T01_9000003142_21289cztM0_level2_quad_clean.evt
Size (bytes)485,380,80093,323,520
Size462.9 MB 89.0 MB
Events in quadrant A3,491,624606,128
Events in quadrant B3,358,249611,954
Events in quadrant C3,265,814591,563
Events in quadrant D4,143,866564,102

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145352
B0140452
C0138212
D0164382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64851021.572860%
B6485811.249036%
C6485991.526600%
D64852583.978412%

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 7605 6485 34 34 0.45% 0.52%
B 7605 6485 3 3 0.04% 0.05%
C 7605 6485 0 0 0.00% 0.00%
D 7605 6485 202 202 2.66% 3.11%

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 9 143 181224 1065.7 846 830 169.3
A 4 2 24058 137.22 846 830 169.3
A 5 16 15356 85.81 846 830 169.3
B 0 230 40678 250.57 836 818 159.1
B 3 64 19136 115.15 836 818 159.1
B 12 111 18742 112.67 836 818 159.1
C 14 238 128597 687.6 803 810 185.8
C 13 61 5607 25.81 803 810 185.8
C 3 233 5514 25.31 803 810 185.8
D 7 38 531580 2717.54 812 791 195.3
D 1 52 148036 753.87 812 791 195.3
D 13 153 145665 741.73 812 791 195.3

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