ASTROSAT CZTI

Data Quality Report

Orbit 09327

Creation date: 2024-06-27T15:44:33.913047
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_009T01_9000001318_09327cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09327cztM0_level2_quad_clean.evt
Size (bytes)255,257,28040,121,280
Size243.4 MB 38.3 MB
Events in quadrant A2,070,564233,000
Events in quadrant B1,820,070235,367
Events in quadrant C1,758,342231,366
Events in quadrant D1,800,599225,603

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08899326
B08527345
C08499301
D08630299

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0862
B0862
C0862
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A409250.122190%
B407520.049080%
C409510.024420%
D410170.170690%

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 4246 4235 0 0 0.00% 0.00%
B 4246 4228 0 0 0.00% 0.00%
C 4246 4231 0 0 0.00% 0.00%
D 4245 4234 3 3 0.07% 0.07%

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 8 5 256144 2648.95 464 455 96.5
A 1 162 18370 185.6 464 455 96.5
A 0 226 4306 39.9 464 455 96.5
B 4 173 11838 124.48 463 451 91.5
B 12 111 10080 105.26 463 451 91.5
B 11 111 8399 86.89 463 451 91.5
C 13 61 3447 28.2 450 452 106.2
C 8 222 3355 27.33 450 452 106.2
C 3 202 1143 6.51 450 452 106.2
D 12 233 30949 267.47 449 437 114.1
D 1 52 18207 155.77 449 437 114.1
D 2 234 16359 139.57 449 437 114.1

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