ASTROSAT CZTI

Data Quality Report

Orbit 40392

Creation date: 2024-06-27T22:15:35.202269
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/AS1A12_056T02_9000005538_40392cztM0_level2.fits modeM0/AS1A12_056T02_9000005538_40392cztM0_level2_quad_clean.evt
Size (bytes)333,984,96093,744,000
Size318.5 MB 89.4 MB
Events in quadrant A3,030,937643,984
Events in quadrant B3,024,353655,819
Events in quadrant C2,685,231623,148
Events in quadrant D3,187,708525,853

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124493
B0128922
C0114312
D0133962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5574430.771439%
B5574561.004665%
C5574130.233226%
D557456110.064586%

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 7097 5575 25 25 0.35% 0.45%
B 7097 5575 18 18 0.25% 0.32%
C 7097 5575 7 7 0.10% 0.13%
D 7097 5575 74 74 1.04% 1.33%

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 492505 3956.46 611 600 124.3
A 13 248 125850 1007.4 611 600 124.3
A 2 79 36448 288.33 611 600 124.3
B 4 170 296153 2511.94 611 593 117.7
B 7 202 242202 2053.41 611 593 117.7
B 4 171 49091 412.18 611 593 117.7
C 15 214 242438 1725.56 600 604 140.1
C 12 249 43166 303.69 600 604 140.1
C 0 10 29971 209.54 600 604 140.1
D 12 128 292848 2092.61 564 548 139.7
D 12 227 234720 1676.47 564 548 139.7
D 12 191 168407 1201.73 564 548 139.7

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