ASTROSAT CZTI

Data Quality Report

Orbit 42193

Creation date: 2024-06-27T22:38:21.135936
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/AS1A12_088T58_9000005772_42193cztM0_level2.fits modeM0/AS1A12_088T58_9000005772_42193cztM0_level2_quad_clean.evt
Size (bytes)129,769,92038,208,960
Size123.8 MB 36.4 MB
Events in quadrant A1,256,508253,800
Events in quadrant B1,074,752261,445
Events in quadrant C1,091,454249,239
Events in quadrant D1,200,677227,725

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050591
B047151
C046021
D051431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A228370.306614%
B2283160.700832%
C228310.043802%
D2283220.963644%

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 3806 2284 2 2 0.05% 0.09%
B 3806 2284 9 9 0.24% 0.39%
C 3806 2284 0 0 0.00% 0.00%
D 3806 2284 21 21 0.55% 0.92%

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 10 83 241571 4399.52 259 254 54.9
A 13 248 11231 200.12 259 254 54.9
A 3 137 2960 49.33 259 254 54.9
B 3 112 42187 794.48 258 250 52.8
B 0 229 12664 235.18 258 250 52.8
B 12 111 6620 120.68 258 250 52.8
C 15 214 99608 1628.94 254 255 61.0
C 13 61 1583 21.77 254 255 61.0
C 7 247 1462 19.79 254 255 61.0
D 12 6 87954 1398.55 250 242 62.7
D 2 249 42799 678.56 250 242 62.7
D 12 33 23207 366.17 250 242 62.7

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