ASTROSAT CZTI

Data Quality Report

Orbit 43653

Creation date: 2024-06-27T22:54:07.757983
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/AS1A12_068T05_9000005894_43653cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43653cztM0_level2_quad_clean.evt
Size (bytes)1,313,064,00080,412,480
Size1.2 GB 76.7 MB
Events in quadrant A4,672,965785,384
Events in quadrant B4,582,577796,727
Events in quadrant C19,088,093249,037
Events in quadrant D19,702,82991,189

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186230
B0186390
C0615880
D0632680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72541492.054039%
B72542233.074166%
C7254722099.531293%
D72557255100.000000%

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 7254 7254 105 105 1.45% 1.45%
B 7254 7254 103 103 1.42% 1.42%
C 7254 7254 6985 6985 96.29% 96.29%
D 7255 7255 7181 7181 98.98% 98.98%

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 821693 4941.11 802 785 166.1
A 13 248 299332 1796.98 802 785 166.1
A 15 222 134248 803.32 802 785 166.1
B 4 206 470882 3029.76 799 777 155.2
B 12 32 211563 1358.48 799 777 155.2
B 3 42 165549 1061.93 799 777 155.2
C 15 142 14622434 228137.0 269 271 64.1
C 15 158 1311872 20463.78 269 271 64.1
C 15 126 1010315 15758.85 269 271 64.1
D 8 192 17724074 521869.29 117 112 34.0
D 4 221 513485 15115.9 117 112 34.0
D 4 216 298022 8771.75 117 112 34.0

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