ASTROSAT CZTI

Data Quality Report

Orbit 40133

Creation date: 2024-06-27T22:12:43.896199
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_004T01_9000005520_40133cztM0_level2.fits modeM0/AS1A12_004T01_9000005520_40133cztM0_level2_quad_clean.evt
Size (bytes)631,304,64076,769,280
Size602.1 MB 73.2 MB
Events in quadrant A2,855,859610,515
Events in quadrant B2,745,599627,191
Events in quadrant C11,072,211259,059
Events in quadrant D6,255,156431,477

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117232
B0120621
C0368221
D0224281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A566660.105895%
B5666601.058948%
C5666335359.177550%
D5666133423.543946%

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 6949 5667 2 2 0.03% 0.04%
B 6949 5667 37 37 0.53% 0.65%
C 6948 5665 3374 3374 48.56% 59.56%
D 6949 5667 1343 1343 19.33% 23.70%

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 411265 3239.88 619 607 126.8
A 6 10 47946 373.48 619 607 126.8
A 13 254 7146 51.59 619 607 126.8
B 5 255 212230 1750.62 616 597 120.9
B 4 171 45244 369.32 616 597 120.9
B 0 230 35813 291.3 616 597 120.9
C 9 187 9245634 96017.02 410 413 96.3
C 15 214 163664 1695.46 410 413 96.3
C 14 254 36612 375.95 410 413 96.3
D 12 227 3395294 26938.9 516 502 126.0
D 2 249 434896 3447.07 516 502 126.0
D 13 249 124452 983.59 516 502 126.0

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