ASTROSAT CZTI

Data Quality Report

Orbit 25632

Creation date: 2024-06-27T19:19:44.471892
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/AS1A07_127T03_9000003732_25632cztM0_level2.evt modeM0/AS1A07_127T03_9000003732_25632cztM0_level2_quad_clean.evt
Size (bytes)521,608,32084,928,320
Size497.4 MB 81.0 MB
Events in quadrant A3,790,815540,044
Events in quadrant B3,257,852551,725
Events in quadrant C3,207,333526,276
Events in quadrant D5,108,158508,109

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154030
B0137650
C0134700
D0195440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6391570.891879%
B6391580.907526%
C6391781.220466%
D63923064.787234%

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 7451 6392 3 3 0.04% 0.05%
B 7451 6392 1 1 0.01% 0.02%
C 7451 6392 0 0 0.00% 0.00%
D 7452 6392 247 247 3.31% 3.86%

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 8 192 552578 3352.4 814 798 164.6
A 6 16 47055 281.04 814 798 164.6
A 0 13 44601 266.13 814 798 164.6
B 3 112 39327 247.0 812 791 156.0
B 0 190 26227 163.03 812 791 156.0
B 12 111 18837 115.67 812 791 156.0
C 14 238 125274 671.82 786 792 185.3
C 3 233 19758 102.36 786 792 185.3
C 13 61 5231 23.96 786 792 185.3
D 13 174 1999721 10420.36 787 764 191.8
D 8 195 90341 466.96 787 764 191.8
D 1 52 27762 140.74 787 764 191.8

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