ASTROSAT CZTI

Data Quality Report

Orbit 28511

Creation date: 2024-06-27T19:52:32.845149
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/AS1A10_110T05_9000004098_28511cztM0_level2.evt modeM0/AS1A10_110T05_9000004098_28511cztM0_level2_quad_clean.evt
Size (bytes)521,107,20091,725,120
Size497.0 MB 87.5 MB
Events in quadrant A2,977,644610,286
Events in quadrant B3,844,394603,947
Events in quadrant C2,984,214587,555
Events in quadrant D5,557,489545,493

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127561
B0152411
C0126121
D0205171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6159480.779347%
B61602433.944805%
C6160651.055195%
D616073111.866883%

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 7194 6159 7 7 0.10% 0.11%
B 7195 6160 155 155 2.15% 2.52%
C 7195 6160 0 0 0.00% 0.00%
D 7195 6160 706 706 9.81% 11.46%

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 15 174 30920 197.83 758 742 152.5
A 12 96 14118 87.68 758 742 152.5
A 13 254 10385 63.21 758 742 152.5
B 10 245 771581 5509.59 735 718 139.9
B 0 230 99740 707.74 735 718 139.9
B 15 33 60393 426.52 735 718 139.9
C 14 238 121256 723.48 718 721 166.6
C 3 233 53462 316.57 718 721 166.6
C 7 247 5685 29.8 718 721 166.6
D 1 52 2068795 12519.7 690 671 165.2
D 8 195 597135 3610.78 690 671 165.2
D 7 238 137303 827.12 690 671 165.2

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