ASTROSAT CZTI

Data Quality Report

Orbit 10624

Creation date: 2024-06-27T16:01:38.660705
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/AS1T01_191T01_9000001536_10624cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10624cztM0_level2_quad_clean.evt
Size (bytes)483,249,60084,064,320
Size460.9 MB 80.2 MB
Events in quadrant A2,890,508544,644
Events in quadrant B3,990,403549,691
Events in quadrant C2,866,594548,238
Events in quadrant D4,493,236496,665

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121862
B0155711
C0122501
D0172501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5810300.516351%
B58103005.163511%
C581070.120482%
D58102344.027539%

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 5811 0 0 0.00% 0.00%
B 7145 5811 203 203 2.84% 3.49%
C 7145 5811 0 0 0.00% 0.00%
D 7145 5811 186 186 2.60% 3.20%

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 13 251 51562 341.3 723 711 149.0
A 1 162 25051 163.36 723 711 149.0
A 13 14 9288 57.57 723 711 149.0
B 4 239 965839 7086.86 719 706 136.2
B 0 219 168987 1235.67 719 706 136.2
B 0 214 36104 259.92 719 706 136.2
C 4 254 124198 773.8 699 707 159.6
C 14 234 10217 59.59 699 707 159.6
C 13 61 5250 28.47 699 707 159.6
D 2 16 522042 3209.86 676 660 162.4
D 13 104 500850 3079.39 676 660 162.4
D 5 222 452022 2778.78 676 660 162.4

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