ASTROSAT CZTI

Data Quality Report

Orbit 47136

Creation date: 2024-06-27T23:32:07.922520
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/AS1C09_003T01_9000006298_47136cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47136cztM0_level2_quad_clean.evt
Size (bytes)504,480,960111,686,400
Size481.1 MB 106.5 MB
Events in quadrant A7,142,012729,708
Events in quadrant B3,560,746761,164
Events in quadrant C3,282,616726,863
Events in quadrant D4,139,765670,761

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259872
B0155342
C0150582
D0174332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70783224.549308%
B7078791.116135%
C7079550.776946%
D70791902.683995%

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 8528 7079 76 76 0.89% 1.07%
B 8528 7079 22 22 0.26% 0.31%
C 8529 7081 21 21 0.25% 0.30%
D 8529 7081 128 128 1.50% 1.81%

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 4107098 25637.23 770 753 160.2
A 0 243 16190 96.38 770 753 160.2
A 9 191 12036 70.44 770 753 160.2
B 4 21 164032 1062.33 778 755 153.7
B 5 32 70381 453.01 778 755 153.7
B 0 200 56420 362.17 778 755 153.7
C 14 254 138009 754.54 767 768 181.9
C 15 208 133346 728.9 767 768 181.9
C 3 233 12700 65.6 767 768 181.9
D 12 233 241183 1271.06 759 737 189.2
D 13 171 175047 921.45 759 737 189.2
D 1 47 173396 912.72 759 737 189.2

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