ASTROSAT CZTI

Data Quality Report

Orbit 43105

Creation date: 2024-06-27T22:48:05.618951
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/AS1T05_153T01_9000005848_43105cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43105cztM0_level2_quad_clean.evt
Size (bytes)671,849,280178,496,640
Size640.7 MB 170.2 MB
Events in quadrant A7,205,6651,158,177
Events in quadrant B4,961,4521,214,036
Events in quadrant C5,869,6501,174,371
Events in quadrant D5,966,9061,084,634

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02320
B02320
C02320
D02320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0390

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0287703
B0230233
C0246583
D0259054

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111624253.807561%
B11163200.179163%
C111631301.164561%
D111621581.415517%

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 15221 11165 272 272 1.79% 2.44%
B 15222 11166 7 7 0.05% 0.06%
C 15222 11166 123 123 0.81% 1.10%
D 15221 11165 146 146 0.96% 1.31%

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 15 237 1248570 5200.14 1175 1149 239.9
A 10 83 1094534 4558.01 1175 1149 239.9
A 15 222 175406 726.43 1175 1149 239.9
B 0 229 150074 654.84 1184 1150 227.4
B 0 189 62834 271.23 1184 1150 227.4
B 3 112 49593 213.01 1184 1150 227.4
C 14 254 636747 2359.19 1161 1167 269.4
C 15 214 497429 1842.06 1161 1167 269.4
C 8 79 176607 651.21 1161 1167 269.4
D 1 52 858999 3030.95 1160 1124 283.0
D 13 249 177543 623.31 1160 1124 283.0
D 5 32 141824 497.11 1160 1124 283.0

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