ASTROSAT CZTI

Data Quality Report

Orbit 13596

Creation date: 2024-06-27T16:43:13.347219
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/AS1A04_193T01_9000002004_13596cztM0_level2.evt modeM0/AS1A04_193T01_9000002004_13596cztM0_level2_quad_clean.evt
Size (bytes)331,672,32089,844,480
Size316.3 MB 85.7 MB
Events in quadrant A2,181,894607,411
Events in quadrant B2,881,268595,933
Events in quadrant C2,187,976595,290
Events in quadrant D2,456,537575,533

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099580
B0118590
C099470
D0107460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494530.060667%
B49451503.033367%
C494550.101112%
D4945120.242669%

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 4946 4946 1 1 0.02% 0.02%
B 4946 4946 138 138 2.79% 2.79%
C 4946 4946 2 2 0.04% 0.04%
D 4946 4946 21 21 0.42% 0.42%

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 1 162 28261 243.78 552 540 113.7
A 1 178 8351 68.69 552 540 113.7
A 1 161 7533 61.5 552 540 113.7
B 0 182 445670 4324.85 546 532 102.9
B 3 64 66167 637.69 546 532 102.9
B 0 189 65939 635.48 546 532 102.9
C 3 233 88602 708.25 534 537 124.3
C 14 234 7723 57.79 534 537 124.3
C 0 207 7583 56.67 534 537 124.3
D 5 222 123823 946.16 533 518 130.3
D 10 157 118246 903.36 533 518 130.3
D 8 195 74418 567.06 533 518 130.3

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