ASTROSAT CZTI

Data Quality Report

Orbit 41066

Creation date: 2024-06-27T22:24:00.020449
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_093T02_9000005594_41066cztM0_level2.fits modeM0/AS1A12_093T02_9000005594_41066cztM0_level2_quad_clean.evt
Size (bytes)346,403,52095,428,800
Size330.4 MB 91.0 MB
Events in quadrant A3,118,073643,037
Events in quadrant B2,633,375666,532
Events in quadrant C2,807,684622,949
Events in quadrant D3,828,052565,744

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125923
B0114652
C0115912
D0151652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5594200.357526%
B559490.160887%
C5594200.357526%
D55941683.003218%

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 9030 5596 6 6 0.07% 0.11%
B 9030 5596 0 0 0.00% 0.00%
C 9030 5596 8 8 0.09% 0.14%
D 9030 5596 171 171 1.89% 3.06%

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 511049 3809.36 647 633 134.0
A 12 189 79945 591.93 647 633 134.0
A 13 248 20623 149.19 647 633 134.0
B 0 190 83122 660.75 643 625 124.9
B 15 32 26203 204.86 643 625 124.9
B 12 111 15939 122.66 643 625 124.9
C 15 214 243097 1642.49 628 632 147.6
C 14 254 70910 476.07 628 632 147.6
C 0 10 38488 256.44 628 632 147.6
D 12 79 471624 3088.4 620 602 152.5
D 2 249 372427 2437.99 620 602 152.5
D 2 16 258950 1693.94 620 602 152.5

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