ASTROSAT CZTI

Data Quality Report

Orbit 36305

Creation date: 2024-06-27T21:25:14.614576
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/AS1A11_089T02_9000005188_36305cztM0_level2.evt modeM0/AS1A11_089T02_9000005188_36305cztM0_level2_quad_clean.evt
Size (bytes)466,712,64059,973,120
Size445.1 MB 57.2 MB
Events in quadrant A2,507,954386,405
Events in quadrant B5,479,436369,115
Events in quadrant C2,748,696363,869
Events in quadrant D3,067,959354,669

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104623
B0196632
C0109902
D0122572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A486670.143855%
B4866103121.187834%
C48661292.651048%
D4866881.808467%

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 6990 4867 3 3 0.04% 0.06%
B 6990 4867 658 658 9.41% 13.52%
C 6990 4867 112 112 1.60% 2.30%
D 6990 4867 101 101 1.44% 2.08%

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 10 83 179626 1518.61 587 578 117.9
A 9 143 32291 268.98 587 578 117.9
A 13 6 8280 65.33 587 578 117.9
B 4 171 2139236 20801.63 541 530 102.8
B 5 172 615576 5982.1 541 530 102.8
B 0 213 226992 2202.63 541 530 102.8
C 0 10 360101 2771.56 557 563 129.7
C 15 214 204553 1572.49 557 563 129.7
C 15 159 8751 63.12 557 563 129.7
D 12 6 420796 3060.96 557 542 137.3
D 2 153 112778 817.48 557 542 137.3
D 12 235 104193 754.95 557 542 137.3

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