ASTROSAT CZTI

Data Quality Report

Orbit 47507

Creation date: 2024-07-11T04:21:12.258381
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_037T05_9000006332_47507cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47507cztM0_level2_quad_clean.evt
Size (bytes)501,629,760114,477,120
Size478.4 MB 109.2 MB
Events in quadrant A7,009,739761,141
Events in quadrant B3,758,179789,505
Events in quadrant C2,960,683756,363
Events in quadrant D4,306,385680,288

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254961
B0158881
C0140061
D0175911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68802693.909884%
B68801221.773256%
C6881170.247057%
D68811822.644964%

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 7475 6881 20 20 0.27% 0.29%
B 7475 6881 38 38 0.51% 0.55%
C 7476 6882 0 0 0.00% 0.00%
D 7476 6882 155 155 2.07% 2.25%

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 3887982 24310.89 770 758 159.9
A 9 191 75828 469.49 770 758 159.9
A 13 248 54106 333.64 770 758 159.9
B 0 200 351682 2327.5 771 749 150.8
B 5 32 167204 1103.98 771 749 150.8
B 0 198 115023 757.9 771 749 150.8
C 1 3 6017 29.64 754 760 177.3
C 13 61 5079 24.36 754 760 177.3
C 0 207 4390 20.47 754 760 177.3
D 2 165 769308 4107.7 745 722 187.1
D 2 249 329788 1758.69 745 722 187.1
D 7 55 116550 619.04 745 722 187.1

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