ASTROSAT CZTI

Data Quality Report

Orbit 09161

Creation date: 2024-06-27T15:42:08.123316
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/AS1C02_027T01_9000001280_09161cztM0_level2.evt modeM0/AS1C02_027T01_9000001280_09161cztM0_level2_quad_clean.evt
Size (bytes)223,372,80064,031,040
Size213.0 MB 61.1 MB
Events in quadrant A1,664,348429,105
Events in quadrant B1,575,467439,071
Events in quadrant C1,494,660437,149
Events in quadrant D1,819,849415,109

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068582
B065301
C063341
D074451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3068210.684485%
B3068341.108214%
C3068130.423729%
D3068260.847458%

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 4413 3069 0 0 0.00% 0.00%
B 4413 3069 0 0 0.00% 0.00%
C 4413 3070 0 0 0.00% 0.00%
D 4413 3069 9 9 0.20% 0.29%

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 8 5 90281 1141.48 387 379 78.8
A 1 162 37184 467.31 387 379 78.8
A 15 174 12812 157.86 387 379 78.8
B 0 214 22462 303.95 391 383 72.6
B 8 234 13742 183.9 391 383 72.6
B 0 229 9705 128.33 391 383 72.6
C 13 61 3016 29.72 382 384 88.6
C 14 67 1196 9.17 382 384 88.6
C 12 4 1112 8.22 382 384 88.6
D 1 52 301499 3015.9 375 366 99.8
D 13 104 23717 233.86 375 366 99.8
D 7 71 20671 203.36 375 366 99.8

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