ASTROSAT CZTI

Data Quality Report

Orbit 28241

Creation date: 2024-06-27T19:49:32.870966
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/AS1C05_019T04_9000004074_28241cztM0_level2.evt modeM0/AS1C05_019T04_9000004074_28241cztM0_level2_quad_clean.evt
Size (bytes)423,469,440108,028,800
Size403.9 MB 103.0 MB
Events in quadrant A2,683,797739,955
Events in quadrant B2,669,501765,686
Events in quadrant C2,672,313719,309
Events in quadrant D4,429,985666,690

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114340
B0112840
C0113750
D0167940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5431380.699687%
B5432540.994109%
C5432741.362297%
D54324408.100147%

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 6726 5431 2 2 0.03% 0.04%
B 6727 5433 0 0 0.00% 0.00%
C 6727 5432 1 1 0.01% 0.02%
D 6727 5433 375 375 5.57% 6.90%

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 12 96 40227 295.42 680 668 133.9
A 1 113 16970 121.74 680 668 133.9
A 13 254 8235 56.51 680 668 133.9
B 12 111 15223 114.08 679 663 127.6
B 11 111 13786 102.82 679 663 127.6
B 14 111 13290 98.94 679 663 127.6
C 14 238 107599 711.6 650 653 150.3
C 2 16 25617 166.11 650 653 150.3
C 3 233 7417 45.01 650 653 150.3
D 1 52 1761666 11936.39 627 610 147.5
D 8 195 125511 846.58 627 610 147.5
D 5 222 88610 596.46 627 610 147.5

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