ASTROSAT CZTI

Data Quality Report

Orbit 47735

Creation date: 2024-07-26T13:12:59.736618
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/AS1T05_213T01_9000006344_47735cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47735cztM0_level2_quad_clean.evt
Size (bytes)419,952,960104,938,560
Size400.5 MB 100.1 MB
Events in quadrant A6,163,654690,449
Events in quadrant B2,972,321725,379
Events in quadrant C2,743,524701,642
Events in quadrant D3,185,596628,782

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228741
B0130201
C0126001
D0138321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61791893.058747%
B6180600.970874%
C6180530.857605%
D61801742.815534%

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 7289 6180 18 18 0.25% 0.29%
B 7290 6180 4 4 0.05% 0.06%
C 7290 6180 0 0 0.00% 0.00%
D 7290 6180 111 111 1.52% 1.80%

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 3430196 23974.12 697 682 143.1
A 9 191 31327 214.22 697 682 143.1
A 7 3 8014 51.25 697 682 143.1
B 0 200 124154 902.86 697 676 136.8
B 5 32 80135 580.99 697 676 136.8
B 5 250 20009 141.36 697 676 136.8
C 14 254 14296 82.87 699 701 164.1
C 0 207 5374 28.48 699 701 164.1
C 13 61 4511 23.22 699 701 164.1
D 10 181 368060 2126.06 695 673 172.8
D 2 249 68119 390.31 695 673 172.8
D 2 233 29641 167.64 695 673 172.8

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