ASTROSAT CZTI

Data Quality Report

Orbit 23592

Creation date: 2024-06-27T18:56:33.474525
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_054T01_9000003486_23592cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23592cztM0_level2_quad_clean.evt
Size (bytes)461,537,280130,334,400
Size440.2 MB 124.3 MB
Events in quadrant A2,991,413899,527
Events in quadrant B3,257,852921,770
Events in quadrant C3,241,362861,577
Events in quadrant D4,061,704827,656

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129792
B0137722
C0137502
D0162123

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A626160.095831%
B6261380.606932%
C62611602.555502%
D62601081.725240%

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 7511 6262 0 0 0.00% 0.00%
B 7511 6261 8 8 0.11% 0.13%
C 7511 6262 61 61 0.81% 0.97%
D 7510 6261 83 83 1.11% 1.33%

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 13 254 10810 65.39 774 758 153.7
A 0 226 6488 37.28 774 758 153.7
A 3 137 6458 37.08 774 758 153.7
B 0 189 80986 556.98 782 764 144.0
B 3 64 39599 269.63 782 764 144.0
B 0 230 21411 143.35 782 764 144.0
C 0 10 218854 1282.43 737 743 170.1
C 14 238 120213 702.45 737 743 170.1
C 3 233 20117 113.91 737 743 170.1
D 1 52 584395 3234.83 742 719 180.4
D 7 223 357107 1975.16 742 719 180.4
D 9 85 140549 774.96 742 719 180.4

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