ASTROSAT CZTI

Data Quality Report

Orbit 15332

Creation date: 2024-06-27T17:07:01.025330
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/AS1T02_073T01_9000002260_15332cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15332cztM0_level2_quad_clean.evt
Size (bytes)508,199,040102,087,360
Size484.7 MB 97.4 MB
Events in quadrant A3,492,613652,455
Events in quadrant B3,544,235662,537
Events in quadrant C3,696,511648,774
Events in quadrant D4,162,378620,272

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153003
B0152792
C0158702
D0175722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7298660.904357%
B7298911.246917%
C7298781.068786%
D72981281.753905%

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 7654 7300 11 11 0.14% 0.15%
B 7654 7300 3 3 0.04% 0.04%
C 7654 7300 20 20 0.26% 0.27%
D 7654 7300 89 89 1.16% 1.22%

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 2 79 98258 553.7 866 849 175.9
A 9 143 40092 223.06 866 849 175.9
A 15 157 17283 93.41 866 849 175.9
B 10 16 88719 529.83 867 844 165.9
B 0 205 25769 150.28 867 844 165.9
B 3 64 25354 147.78 867 844 165.9
C 3 233 391498 1990.79 846 851 196.2
C 13 61 6001 26.25 846 851 196.2
C 8 128 4751 19.87 846 851 196.2
D 2 33 464394 2293.19 840 816 202.2
D 13 122 409905 2023.65 840 816 202.2
D 12 110 70415 344.29 840 816 202.2

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