ASTROSAT CZTI

Data Quality Report

Orbit 17104

Creation date: 2024-06-27T17:32:08.090270
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/AS1A05_004T06_9000002536_17104cztM0_level2.evt modeM0/AS1A05_004T06_9000002536_17104cztM0_level2_quad_clean.evt
Size (bytes)131,541,12034,623,360
Size125.4 MB 33.0 MB
Events in quadrant A810,299232,939
Events in quadrant B970,734231,160
Events in quadrant C859,223223,236
Events in quadrant D1,208,232218,822

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039040
B043300
C039240
D049980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A194600.000000%
B194660.308325%
C194660.308325%
D1946743.802672%

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 1946 1946 1 1 0.05% 0.05%
B 1946 1946 3 3 0.15% 0.15%
C 1946 1946 0 0 0.00% 0.00%
D 1946 1946 64 64 3.29% 3.29%

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 4 2 4912 105.11 209 204 44.8
A 0 226 1896 37.77 209 204 44.8
A 12 194 1661 32.53 209 204 44.8
B 4 216 91981 2199.77 207 201 41.7
B 7 220 34844 830.32 207 201 41.7
B 0 189 9433 221.27 207 201 41.7
C 14 238 31116 632.7 203 203 48.9
C 3 233 19433 393.58 203 203 48.9
C 9 54 9806 196.54 203 203 48.9
D 5 222 330003 6489.69 204 198 50.8
D 10 70 65211 1279.28 204 198 50.8
D 12 110 16633 323.4 204 198 50.8

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