ASTROSAT CZTI

Data Quality Report

Orbit 13553

Creation date: 2024-06-27T16:42:32.233795
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_085T01_9000001996_13553cztM0_level2.evt modeM0/AS1A04_085T01_9000001996_13553cztM0_level2_quad_clean.evt
Size (bytes)197,066,88043,467,840
Size187.9 MB 41.5 MB
Events in quadrant A1,141,159293,254
Events in quadrant B1,226,066296,294
Events in quadrant C1,191,962291,399
Events in quadrant D2,249,004267,264

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050581
B052071
C050861
D083601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2328753.221649%
B2328974.166667%
C2328592.534364%
D23282209.450172%

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 2524 2330 0 0 0.00% 0.00%
B 2524 2329 1 1 0.04% 0.04%
C 2524 2330 2 2 0.08% 0.09%
D 2524 2329 88 88 3.49% 3.78%

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 3302 48.76 294 287 61.8
A 15 69 3232 47.62 294 287 61.8
A 0 226 2695 38.94 294 287 61.8
B 0 182 59594 1011.15 292 284 58.7
B 3 209 14989 250.7 292 284 58.7
B 12 111 6276 102.16 292 284 58.7
C 3 233 50596 724.47 290 291 69.4
C 14 234 7816 108.37 290 291 69.4
C 13 61 2124 26.4 290 291 69.4
D 13 122 673586 9535.55 283 274 70.6
D 8 195 404616 5726.35 283 274 70.6
D 2 14 73863 1042.18 283 274 70.6

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