ASTROSAT CZTI

Data Quality Report

Orbit 07510

Creation date: 2024-06-27T15:20:39.535436
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/AS1A02_134T01_9000001036_07510cztM0_level2.evt modeM0/AS1A02_134T01_9000001036_07510cztM0_level2_quad_clean.evt
Size (bytes)468,360,00083,298,240
Size446.7 MB 79.4 MB
Events in quadrant A3,152,369529,478
Events in quadrant B3,981,569531,030
Events in quadrant C3,167,380514,635
Events in quadrant D3,442,447494,981

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136272
B0160131
C0138141
D0144981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6485831.279877%
B64851602.467232%
C6485741.141095%
D64851211.865844%

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 7685 6485 0 0 0.00% 0.00%
B 7685 6485 54 54 0.70% 0.83%
C 7685 6485 6 6 0.08% 0.09%
D 7685 6485 35 35 0.46% 0.54%

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 14 11782 68.18 814 799 161.1
A 0 226 7912 44.15 814 799 161.1
A 12 194 7522 41.73 814 799 161.1
B 0 187 631025 4221.6 807 788 149.3
B 0 214 122962 818.37 807 788 149.3
B 0 219 64432 426.31 807 788 149.3
C 1 16 59723 331.87 779 783 177.6
C 9 68 46946 259.93 779 783 177.6
C 8 229 16310 87.43 779 783 177.6
D 2 152 148630 786.43 785 762 188.0
D 14 34 101668 536.67 785 762 188.0
D 2 136 69075 363.32 785 762 188.0

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