ASTROSAT CZTI

Data Quality Report

Orbit 28348

Creation date: 2024-06-27T19:50:47.029159
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/AS1A10_116T01_9000004082_28348cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28348cztM0_level2_quad_clean.evt
Size (bytes)312,511,68043,960,320
Size298.0 MB 41.9 MB
Events in quadrant A2,163,905260,433
Events in quadrant B2,151,612264,964
Events in quadrant C2,120,068254,677
Events in quadrant D2,735,703248,248

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092480
B091460
C091490
D0109730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42852175.064177%
B42852606.067678%
C42852575.997666%
D42852325.414236%

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 4330 4287 0 0 0.00% 0.00%
B 4330 4287 0 0 0.00% 0.00%
C 4330 4287 0 0 0.00% 0.00%
D 4330 4287 44 44 1.02% 1.03%

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 15 174 26592 229.13 548 534 113.7
A 12 96 24255 208.58 548 534 113.7
A 13 254 6359 51.22 548 534 113.7
B 0 230 16707 149.9 539 523 108.0
B 12 111 13895 123.85 539 523 108.0
B 11 111 12540 111.3 539 523 108.0
C 14 238 81155 639.3 523 526 126.1
C 13 61 3528 23.8 523 526 126.1
C 3 233 2484 15.52 523 526 126.1
D 8 195 396797 3010.47 535 519 131.6
D 1 52 236136 1789.95 535 519 131.6
D 2 250 45306 340.24 535 519 131.6

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