ASTROSAT CZTI

Data Quality Report

Orbit 10521

Creation date: 2024-06-27T16:00:28.493187
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/AS1A03_033T01_9000001524_10521cztM0_level2.evt modeM0/AS1A03_033T01_9000001524_10521cztM0_level2_quad_clean.evt
Size (bytes)298,123,20068,567,040
Size284.3 MB 65.4 MB
Events in quadrant A2,270,213470,211
Events in quadrant B1,760,742372,454
Events in quadrant C2,233,297485,651
Events in quadrant D2,445,936421,311

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02490515003
B03073623206
C02580815880
D02835718291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03211
B03413
C03413
D0319

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254136
B0254138
C0254136
D0242126

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A490730.061137%
B371450.134626%
C491590.183113%
D484230.061958%

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 7567 5819 0 0 0.00% 0.00%
B 7566 4594 0 0 0.00% 0.00%
C 7567 5832 1 1 0.01% 0.02%
D 7566 5313 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 3 80 30492 261.66 570 559 114.4
A 13 251 18319 155.25 570 559 114.4
A 15 239 11429 95.02 570 559 114.4
B 4 239 36088 444.94 427 418 80.2
B 0 214 25115 308.07 427 418 80.2
B 11 51 18971 231.43 427 418 80.2
C 14 234 8577 61.11 568 571 131.0
C 1 3 4231 27.94 568 571 131.0
C 13 61 4129 27.16 568 571 131.0
D 8 195 308291 2427.54 535 521 126.8
D 2 16 72037 564.08 535 521 126.8
D 2 234 16849 128.79 535 521 126.8

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