ASTROSAT CZTI

Data Quality Report

Orbit 03554

Creation date: 2024-06-27T14:30:54.096040
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/AS1G05_045T01_9000000468_03554cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03554cztM0_level2_quad_clean.evt
Size (bytes)1,645,041,600143,377,920
Size1.5 GB 136.7 MB
Events in quadrant A6,742,532894,434
Events in quadrant B7,513,637891,948
Events in quadrant C28,128,179677,169
Events in quadrant D6,454,577870,458

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03027530
B03164933
C093770172
D03022034

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02980
B02982
C02980
D02980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A145662411.654538%
B145642661.826421%
C14543809855.683147%
D145651861.277034%

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 16044 14578 1 1 0.01% 0.01%
B 16044 14579 9 9 0.06% 0.06%
C 16044 14576 8005 8005 49.89% 54.92%
D 16044 14579 35 35 0.22% 0.24%

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 3 1 122781 357.09 1668 1628 339.3
A 0 50 93875 271.89 1668 1628 339.3
A 0 118 77546 223.76 1668 1628 339.3
B 15 204 527554 1597.62 1693 1652 329.2
B 14 167 155805 468.3 1693 1652 329.2
B 0 228 52812 155.42 1693 1652 329.2
C 1 192 22360278 68690.11 1402 1408 325.5
C 2 53 160756 489.54 1402 1408 325.5
C 1 16 96437 291.94 1402 1408 325.5
D 7 39 55762 137.67 1624 1571 393.6
D 13 223 50669 124.73 1624 1571 393.6
D 13 239 48680 119.68 1624 1571 393.6

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