ASTROSAT CZTI

Data Quality Report

Orbit 32849

Creation date: 2024-06-27T20:43:03.468831
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/AS1C06_010T05_9000004736_32849cztM0_level2.evt modeM0/AS1C06_010T05_9000004736_32849cztM0_level2_quad_clean.evt
Size (bytes)319,230,72052,600,320
Size304.4 MB 50.2 MB
Events in quadrant A1,335,060364,003
Events in quadrant B1,936,910365,669
Events in quadrant C1,481,722357,874
Events in quadrant D4,710,824292,534

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060301
B076821
C064431
D0160721

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A297540.134454%
B29751836.151261%
C2975361.210084%
D297597832.873950%

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 2975 2975 2 2 0.07% 0.07%
B 2975 2975 125 125 4.20% 4.20%
C 2975 2975 21 21 0.71% 0.71%
D 2975 2975 909 909 30.55% 30.55%

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 9 143 15081 216.0 334 326 68.3
A 7 16 6342 88.07 334 326 68.3
A 13 254 5921 81.91 334 326 68.3
B 5 172 450806 7127.02 325 317 63.2
B 0 197 83430 1314.9 325 317 63.2
B 8 128 61256 964.09 325 317 63.2
C 3 233 121970 1635.77 318 320 74.4
C 0 10 91481 1225.8 318 320 74.4
C 14 67 10707 139.67 318 320 74.4
D 12 227 1474434 19563.48 290 284 75.4
D 8 195 1161419 15409.45 290 284 75.4
D 10 203 284915 3777.35 290 284 75.4

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