ASTROSAT CZTI

Data Quality Report

Orbit 14932

Creation date: 2024-06-27T17:01:28.775164
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/AS1T02_055T01_9000002206_14932cztM0_level2.evt modeM0/AS1T02_055T01_9000002206_14932cztM0_level2_quad_clean.evt
Size (bytes)529,755,840102,752,640
Size505.2 MB 98.0 MB
Events in quadrant A3,148,128680,169
Events in quadrant B6,225,663634,053
Events in quadrant C3,137,542667,080
Events in quadrant D3,074,070659,538

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139543
B0229912
C0138072
D0139972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6750190.281481%
B675075011.111111%
C6750120.177778%
D6750140.207407%

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 7711 6752 4 4 0.05% 0.06%
B 7711 6752 501 501 6.50% 7.42%
C 7711 6752 0 0 0.00% 0.00%
D 7711 6752 1 1 0.01% 0.01%

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 12 189 62027 387.41 784 766 158.1
A 4 2 36778 227.74 784 766 158.1
A 13 252 11179 65.85 784 766 158.1
B 10 16 2237711 15542.48 754 734 143.9
B 0 219 665238 4616.96 754 734 143.9
B 0 229 244871 1696.26 754 734 143.9
C 3 233 160484 909.0 762 767 175.7
C 13 61 5468 26.75 762 767 175.7
C 7 222 2660 10.77 762 767 175.7
D 7 254 123557 678.85 759 739 180.9
D 2 152 25238 135.41 759 739 180.9
D 10 70 23406 125.29 759 739 180.9

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