ASTROSAT CZTI

Data Quality Report

Orbit 08285

Creation date: 2024-06-27T15:30:34.743409
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_065T02_9000001150_08285cztM0_level2.evt modeM0/AS1G07_065T02_9000001150_08285cztM0_level2_quad_clean.evt
Size (bytes)198,659,52054,918,720
Size189.5 MB 52.4 MB
Events in quadrant A1,288,913367,908
Events in quadrant B1,449,553367,595
Events in quadrant C1,282,570357,537
Events in quadrant D1,776,203343,052

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064221
B067220
C064260
D076900

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A319010.031348%
B3190160.501567%
C319000.000000%
D3190150.470219%

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 3190 3190 0 0 0.00% 0.00%
B 3190 3190 13 13 0.41% 0.41%
C 3190 3190 1 1 0.03% 0.03%
D 3190 3190 22 22 0.69% 0.69%

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 0 254 15252 216.62 330 323 68.9
A 5 112 3148 40.99 330 323 68.9
A 0 226 3065 39.79 330 323 68.9
B 4 81 50229 767.23 334 326 65.0
B 11 51 27972 425.04 334 326 65.0
B 10 16 27032 410.59 334 326 65.0
C 10 9 14701 189.48 320 321 75.9
C 12 4 10525 134.46 320 321 75.9
C 9 54 8580 108.83 320 321 75.9
D 12 233 261257 3333.35 315 305 78.3
D 2 152 115291 1468.81 315 305 78.3
D 13 169 72233 918.79 315 305 78.3

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