ASTROSAT CZTI

Data Quality Report

Orbit 14267

Creation date: 2024-06-27T16:52:42.107245
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/AS1G08_014T01_9000002104_14267cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14267cztM0_level2_quad_clean.evt
Size (bytes)888,500,160163,293,120
Size847.3 MB 155.7 MB
Events in quadrant A5,966,6881,064,505
Events in quadrant B5,951,7511,072,127
Events in quadrant C6,289,9781,014,605
Events in quadrant D7,897,004973,181

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203
B0203
C0203
D0202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02444
B02444
C02444
D02444

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025692279
B025470213
C025614220
D031446338

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11871300.252717%
B11877730.614633%
C11875150.126316%
D118663983.354121%

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 13927 11883 2 2 0.01% 0.02%
B 13927 11885 10 10 0.07% 0.08%
C 13927 11883 0 0 0.00% 0.00%
D 13926 11874 329 329 2.36% 2.77%

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 12 189 206847 716.27 1436 1406 286.8
A 11 29 173401 599.66 1436 1406 286.8
A 6 16 24715 81.27 1436 1406 286.8
B 0 229 133477 487.3 1435 1400 271.0
B 0 219 84137 305.26 1435 1400 271.0
B 10 245 67200 242.77 1435 1400 271.0
C 3 233 830435 2555.89 1397 1404 324.4
C 13 61 9988 26.46 1397 1404 324.4
C 10 22 5967 14.07 1397 1404 324.4
D 5 222 1271769 3946.14 1372 1340 321.9
D 8 195 599715 1858.64 1372 1340 321.9
D 12 110 328657 1016.7 1372 1340 321.9

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