ASTROSAT CZTI

Data Quality Report

Orbit 02199

Creation date: 2024-06-27T14:15:08.147364
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/AS1T01_072T04_9000000342_02199cztM0_level2.evt modeM0/AS1T01_072T04_9000000342_02199cztM0_level2_quad_clean.evt
Size (bytes)523,569,60024,318,720
Size499.3 MB 23.2 MB
Events in quadrant A3,111,992128,751
Events in quadrant B1,691,083178,739
Events in quadrant C9,216,36410,015
Events in quadrant D1,596,805167,208

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117272
B073281
C0299991
D073171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A353069619.716714%
B3530501.416431%
C35303530100.000000%
D3530481.359773%

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 4766 3530 505 505 10.60% 14.31%
B 4766 3530 0 0 0.00% 0.00%
C 4766 3531 3492 3492 73.27% 98.90%
D 4766 3530 0 0 0.00% 0.00%

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 15 171 1627659 20552.12 382 374 79.2
A 10 2 5619 66.24 382 374 79.2
A 12 194 4339 50.08 382 374 79.2
B 4 158 18184 211.8 430 419 83.9
B 6 219 7917 89.39 430 419 83.9
B 12 111 5286 58.03 430 419 83.9
C 7 111 3037223 78446.15 58 53 38.7
C 0 187 1320678 34110.03 58 53 38.7
C 7 247 688569 17783.47 58 53 38.7
D 9 64 16526 164.73 410 401 97.9
D 15 194 7636 73.91 410 401 97.9
D 5 233 5250 49.54 410 401 97.9

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