ASTROSAT CZTI

Data Quality Report

Orbit 18047

Creation date: 2024-06-27T17:44:20.494843
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/AS1A06_003T04_9000002682_18047cztM0_level2.evt modeM0/AS1A06_003T04_9000002682_18047cztM0_level2_quad_clean.evt
Size (bytes)482,446,08097,755,840
Size460.1 MB 93.2 MB
Events in quadrant A2,991,951657,544
Events in quadrant B3,074,198664,966
Events in quadrant C2,975,415619,453
Events in quadrant D5,164,996602,386

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126781
B0128341
C0125711
D0194221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5960380.637584%
B5961560.939440%
C5961621.040094%
D59614848.119443%

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 7145 5961 0 0 0.00% 0.00%
B 7146 5962 2 2 0.03% 0.03%
C 7146 5962 0 0 0.00% 0.00%
D 7146 5962 360 360 5.04% 6.04%

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 15 174 15112 93.25 773 758 153.9
A 0 226 6774 39.08 773 758 153.9
A 12 194 5719 32.23 773 758 153.9
B 0 197 25748 172.39 766 747 145.0
B 12 111 16471 108.42 766 747 145.0
B 0 189 15412 101.12 766 747 145.0
C 14 238 114278 677.57 721 728 167.6
C 8 208 21040 121.2 721 728 167.6
C 5 218 8298 45.17 721 728 167.6
D 5 222 1856048 10424.64 729 707 178.0
D 11 176 213763 1197.1 729 707 178.0
D 1 52 113825 635.58 729 707 178.0

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