ASTROSAT CZTI

Data Quality Report

Orbit 25326

Creation date: 2024-06-27T19:16:24.308547
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/AS1A09_059T01_9000003706_25326cztM0_level2.evt modeM0/AS1A09_059T01_9000003706_25326cztM0_level2_quad_clean.evt
Size (bytes)549,875,52074,629,440
Size524.4 MB 71.2 MB
Events in quadrant A3,886,545459,654
Events in quadrant B3,279,206466,998
Events in quadrant C5,050,444435,961
Events in quadrant D3,984,683431,913

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158390
B0138640
C0193390
D0161830

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6671841.259182%
B6670941.409295%
C66686169.238152%
D6667951.424929%

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 7671 6671 0 0 0.00% 0.00%
B 7670 6670 0 0 0.00% 0.00%
C 7670 6671 298 298 3.89% 4.47%
D 7670 6671 28 28 0.37% 0.42%

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 15 173 647135 3837.77 840 823 168.4
A 13 254 9578 51.99 840 823 168.4
A 3 137 7556 39.98 840 823 168.4
B 12 111 19813 118.71 834 811 160.1
B 11 111 17709 105.57 834 811 160.1
B 14 111 16272 96.59 834 811 160.1
C 9 54 1883142 10474.33 776 782 179.7
C 14 238 123553 683.15 776 782 179.7
C 3 233 8910 45.23 776 782 179.7
D 8 195 457737 2331.57 809 787 196.0
D 1 52 333402 1697.15 809 787 196.0
D 12 235 69521 350.71 809 787 196.0

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