ASTROSAT CZTI

Data Quality Report

Orbit 47693

Creation date: 2024-07-23T17:15:40.166912
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/AS1A13_082T01_9000006342_47693cztM0_level2.fits modeM0/AS1A13_082T01_9000006342_47693cztM0_level2_quad_clean.evt
Size (bytes)416,278,080101,756,160
Size397.0 MB 97.0 MB
Events in quadrant A6,157,393672,265
Events in quadrant B2,859,370700,621
Events in quadrant C2,692,674676,436
Events in quadrant D3,237,323616,220

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232622
B0123981
C0122001
D0136691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59562023.391538%
B5957781.309384%
C5957300.503609%
D59571161.947289%

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 7126 5956 14 14 0.20% 0.24%
B 7127 5957 1 1 0.01% 0.02%
C 7127 5958 0 0 0.00% 0.00%
D 7127 5957 42 42 0.59% 0.71%

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 3268522 22591.57 699 686 144.6
A 9 191 132017 907.93 699 686 144.6
A 7 3 44367 301.98 699 686 144.6
B 0 200 80044 579.06 696 674 137.1
B 12 111 17608 123.55 696 674 137.1
B 11 111 16289 113.92 696 674 137.1
C 14 254 14943 88.37 686 690 161.3
C 13 61 4523 23.77 686 690 161.3
C 6 247 3999 20.52 686 690 161.3
D 7 96 331699 1911.58 692 670 173.2
D 2 249 85641 490.68 692 670 173.2
D 5 171 53962 307.74 692 670 173.2

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