ASTROSAT CZTI

Data Quality Report

Orbit 25603

Creation date: 2024-06-27T19:19:25.795359
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/AS1A07_148T02_9000003728_25603cztM0_level2.evt modeM0/AS1A07_148T02_9000003728_25603cztM0_level2_quad_clean.evt
Size (bytes)474,834,24094,383,360
Size452.8 MB 90.0 MB
Events in quadrant A3,465,776622,030
Events in quadrant B3,374,187633,936
Events in quadrant C3,244,812585,888
Events in quadrant D3,861,068569,978

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143140
B0139890
C0136110
D0157050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6401380.593657%
B6401440.687393%
C6401971.515388%
D6401520.812373%

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 7561 6402 13 13 0.17% 0.20%
B 7561 6402 3 3 0.04% 0.05%
C 7561 6402 10 10 0.13% 0.16%
D 7561 6402 36 36 0.48% 0.56%

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 6 16 200789 1211.4 823 807 165.1
A 8 192 87535 525.36 823 807 165.1
A 13 254 10338 57.73 823 807 165.1
B 0 219 104162 658.73 822 805 156.9
B 0 190 19442 118.78 822 805 156.9
B 12 111 18422 112.28 822 805 156.9
C 14 238 123593 674.11 776 782 182.2
C 3 233 77848 423.02 776 782 182.2
C 0 207 22498 119.2 776 782 182.2
D 1 52 680724 3563.92 783 762 190.8
D 8 195 102281 532.1 783 762 190.8
D 2 153 39593 203.53 783 762 190.8

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