ASTROSAT CZTI

Data Quality Report

Orbit 08052

Creation date: 2024-06-27T15:28:04.985360
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/AS1G06_168T16_9000001112_08052cztM0_level2.evt modeM0/AS1G06_168T16_9000001112_08052cztM0_level2_quad_clean.evt
Size (bytes)194,592,96046,321,920
Size185.6 MB 44.2 MB
Events in quadrant A1,384,017300,956
Events in quadrant B1,265,129313,462
Events in quadrant C1,221,441314,956
Events in quadrant D1,846,072288,906

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059632
B055301
C054651
D072781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2565773.001949%
B2565853.313840%
C2565180.701754%
D25651967.641326%

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 2610 2566 17 17 0.65% 0.66%
B 2610 2566 1 1 0.04% 0.04%
C 2610 2566 0 0 0.00% 0.00%
D 2610 2566 138 138 5.29% 5.38%

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 4 2 218350 3447.5 300 291 63.3
A 13 251 7159 108.58 300 291 63.3
A 0 226 2791 39.52 300 291 63.3
B 4 81 48008 772.45 310 300 61.8
B 5 250 7970 124.19 310 300 61.8
B 12 111 7006 108.58 310 300 61.8
C 1 16 27279 373.06 303 303 72.3
C 8 128 4479 57.75 303 303 72.3
C 13 61 2451 29.71 303 303 72.3
D 1 52 480656 6648.53 284 274 72.3
D 4 95 198988 2750.22 284 274 72.3
D 2 14 81575 1125.21 284 274 72.3

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