ASTROSAT CZTI

Data Quality Report

Orbit 06155

Creation date: 2024-06-27T15:03:30.032004
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/AS1A02_199T01_9000000800_06155cztM0_level2.evt modeM0/AS1A02_199T01_9000000800_06155cztM0_level2_quad_clean.evt
Size (bytes)514,909,440115,122,240
Size491.1 MB 109.8 MB
Events in quadrant A3,640,523753,469
Events in quadrant B4,193,490757,529
Events in quadrant C3,412,011742,530
Events in quadrant D3,822,559695,035

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164333
B0179132
C0158712
D0171082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7730670.866753%
B77301942.509702%
C7730430.556274%
D77301752.263907%

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 8750 7733 13 13 0.15% 0.17%
B 8750 7733 76 76 0.87% 0.98%
C 8750 7733 0 0 0.00% 0.00%
D 8750 7732 98 98 1.12% 1.27%

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 8 15 233897 1290.16 884 864 180.6
A 0 226 8529 42.44 884 864 180.6
A 12 194 8337 41.37 884 864 180.6
B 3 64 607099 3602.67 889 868 168.3
B 0 214 48322 282.01 889 868 168.3
B 15 204 30988 178.99 889 868 168.3
C 1 16 15194 71.48 867 869 200.4
C 13 61 6797 29.58 867 869 200.4
C 8 128 5691 24.06 867 869 200.4
D 2 33 269558 1285.97 849 820 209.0
D 13 169 110643 525.53 849 820 209.0
D 5 97 87673 415.61 849 820 209.0

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