ASTROSAT CZTI

Data Quality Report

Orbit 33558

Creation date: 2024-06-27T20:50:08.886730
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/AS1A11_060T01_9000004808_33558cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33558cztM0_level2_quad_clean.evt
Size (bytes)576,918,72070,041,600
Size550.2 MB 66.8 MB
Events in quadrant A2,779,193441,268
Events in quadrant B4,886,490423,262
Events in quadrant C3,810,329438,291
Events in quadrant D5,578,182386,861

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123643
B0183952
C0150462
D0207922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A616840.064851%
B616869411.251621%
C6168801.297017%
D61685609.079118%

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 9184 6170 0 0 0.00% 0.00%
B 9184 6170 543 543 5.91% 8.80%
C 9184 6170 65 65 0.71% 1.05%
D 9184 6170 561 561 6.11% 9.09%

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 13 254 9001 57.55 718 704 144.2
A 3 137 7436 46.69 718 704 144.2
A 10 83 6600 40.9 718 704 144.2
B 5 172 1718252 12970.68 684 664 132.4
B 5 255 197816 1488.83 684 664 132.4
B 4 251 94288 707.02 684 664 132.4
C 3 233 466555 2859.33 701 704 162.9
C 15 214 265997 1628.33 701 704 162.9
C 14 254 151373 924.79 701 704 162.9
D 15 0 1413675 8554.01 672 652 165.2
D 8 195 1108853 6708.71 672 652 165.2
D 2 249 266783 1611.08 672 652 165.2

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