ASTROSAT CZTI

Data Quality Report

Orbit 10126

Creation date: 2024-06-27T15:55:18.091536
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_013T01_9000001456_10126cztM0_level2.evt modeM0/AS1G07_013T01_9000001456_10126cztM0_level2_quad_clean.evt
Size (bytes)762,321,600204,324,480
Size727.0 MB 194.9 MB
Events in quadrant A5,316,0061,338,041
Events in quadrant B5,494,6951,363,832
Events in quadrant C5,012,9581,391,985
Events in quadrant D6,493,0701,308,932

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02366
B02362
C02352
D02362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024228369
B024219363
C023371300
D027127575

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113572191.928326%
B113631621.425680%
C113771110.975653%
D113092261.998408%

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 13131 11518 78 78 0.59% 0.68%
B 13131 11519 18 18 0.14% 0.16%
C 13131 11519 2 2 0.02% 0.02%
D 13131 11507 98 98 0.75% 0.85%

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 15 174 314342 1200.32 1292 1260 260.8
A 8 5 13650 47.5 1292 1260 260.8
A 0 226 11891 40.76 1292 1260 260.8
B 0 214 151950 612.35 1302 1269 246.1
B 4 239 132059 531.52 1302 1269 246.1
B 0 219 36931 144.93 1302 1269 246.1
C 14 67 11129 33.66 1280 1282 292.6
C 14 234 10815 32.58 1280 1282 292.6
C 13 61 9550 28.26 1280 1282 292.6
D 8 195 574735 1913.4 1262 1224 299.7
D 2 16 250154 830.5 1262 1224 299.7
D 12 233 246730 819.08 1262 1224 299.7

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