ASTROSAT CZTI

Data Quality Report

Orbit 10088

Creation date: 2024-06-27T15:54:52.481940
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/AS1G07_014T01_9000001450_10088cztM0_level2.evt modeM0/AS1G07_014T01_9000001450_10088cztM0_level2_quad_clean.evt
Size (bytes)445,573,44095,454,720
Size424.9 MB 91.0 MB
Events in quadrant A2,815,225632,359
Events in quadrant B3,267,961637,373
Events in quadrant C2,733,949626,012
Events in quadrant D4,277,227583,615

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122412
B0136331
C0121171
D0165371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5886971.647978%
B58861141.936799%
C5886701.189263%
D58862944.994903%

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 7166 5886 0 0 0.00% 0.00%
B 7166 5886 22 22 0.31% 0.37%
C 7166 5886 2 2 0.03% 0.03%
D 7166 5886 205 205 2.86% 3.48%

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 15 10747 68.39 725 711 146.8
A 0 226 6990 42.79 725 711 146.8
A 12 194 6187 37.32 725 711 146.8
B 4 81 170783 1243.98 723 706 136.7
B 4 174 141803 1032.01 723 706 136.7
B 4 239 57370 414.45 723 706 136.7
C 10 22 13955 83.6 691 695 158.6
C 4 175 7917 45.53 691 695 158.6
C 14 234 7856 45.15 691 695 158.6
D 1 52 549888 2992.26 681 665 183.5
D 8 195 329377 1790.88 681 665 183.5
D 7 71 298577 1623.08 681 665 183.5

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