ASTROSAT CZTI

Data Quality Report

Orbit 23734

Creation date: 2024-06-27T18:58:07.027714
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/AS1A07_027T09_9000003512_23734cztM0_level2.evt modeM0/AS1A07_027T09_9000003512_23734cztM0_level2_quad_clean.evt
Size (bytes)196,871,04047,465,280
Size187.8 MB 45.3 MB
Events in quadrant A1,122,065322,731
Events in quadrant B1,344,180323,534
Events in quadrant C1,128,615312,304
Events in quadrant D2,197,331300,796

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050450
B056550
C050590
D083390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247200.000000%
B2473140.566114%
C247370.283057%
D2473522.102709%

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 2472 2472 0 0 0.00% 0.00%
B 2473 2473 13 13 0.53% 0.53%
C 2473 2473 0 0 0.00% 0.00%
D 2473 2473 61 61 2.47% 2.47%

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 13 254 4568 70.11 290 284 61.1
A 0 226 2617 38.18 290 284 61.1
A 3 137 2509 36.41 290 284 61.1
B 0 229 110742 1931.39 287 281 57.2
B 3 64 47459 824.9 287 281 57.2
B 0 189 37242 646.26 287 281 57.2
C 14 238 43264 657.46 271 273 65.4
C 7 247 19958 301.04 271 273 65.4
C 2 16 7686 113.37 271 273 65.4
D 8 195 769779 11279.88 275 266 68.2
D 1 52 312730 4580.24 275 266 68.2
D 13 174 32285 469.35 275 266 68.2

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