ASTROSAT CZTI

Data Quality Report

Orbit 03541

Creation date: 2024-06-27T14:30:43.510282
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_03541cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03541cztM0_level2_quad_clean.evt
Size (bytes)709,113,600120,885,120
Size676.3 MB 115.3 MB
Events in quadrant A4,655,891753,233
Events in quadrant B5,259,203750,070
Events in quadrant C6,549,079733,629
Events in quadrant D4,329,622726,855

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209373
B0217632
C0260592
D0206432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02060
B02060
C02060
D02060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A100581671.660370%
B100581731.720024%
C100583503.479817%
D100581331.322330%

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 11753 10058 10 10 0.09% 0.10%
B 11753 10058 25 25 0.21% 0.25%
C 11753 10058 189 189 1.61% 1.88%
D 11753 10058 15 15 0.13% 0.15%

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 0 50 164025 688.84 1142 1113 236.5
A 0 118 34893 142.83 1142 1113 236.5
A 3 1 19183 76.4 1142 1113 236.5
B 15 204 357154 1594.55 1154 1124 223.3
B 0 182 153369 681.86 1154 1124 223.3
B 14 167 86956 384.41 1154 1124 223.3
C 1 192 1105749 4261.5 1105 1109 259.2
C 4 248 935069 3603.05 1105 1109 259.2
C 15 208 157262 602.41 1105 1109 259.2
D 13 223 56076 202.8 1114 1078 271.2
D 2 206 29057 103.17 1114 1078 271.2
D 5 233 18564 64.48 1114 1078 271.2

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