ASTROSAT CZTI

Data Quality Report

Orbit 17359

Creation date: 2024-06-27T17:35:28.266316
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_165T12_9000002562_17359cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17359cztM0_level2_quad_clean.evt
Size (bytes)645,612,480111,421,440
Size615.7 MB 106.3 MB
Events in quadrant A3,865,150721,239
Events in quadrant B3,986,773730,132
Events in quadrant C3,943,913689,673
Events in quadrant D7,189,594651,746

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173002
B0174992
C0172893
D0271862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8368350.418260%
B8369780.932011%
C8368820.979924%
D83685616.704111%

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 9123 8370 0 0 0.00% 0.00%
B 9124 8371 0 0 0.00% 0.00%
C 9123 8370 0 0 0.00% 0.00%
D 9123 8370 479 479 5.25% 5.72%

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 0 226 8926 38.79 1005 984 204.8
A 3 137 7573 32.18 1005 984 204.8
A 12 194 7158 30.15 1005 984 204.8
B 12 111 23298 114.69 1009 982 194.6
B 11 111 20062 98.06 1009 982 194.6
B 4 216 17573 85.27 1009 982 194.6
C 14 238 148813 651.69 963 967 226.9
C 3 233 26709 113.47 963 967 226.9
C 0 79 7611 29.28 963 967 226.9
D 5 222 1736951 7485.74 945 917 231.9
D 13 232 1243020 5355.92 945 917 231.9
D 13 189 270028 1160.4 945 917 231.9

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