ASTROSAT CZTI

Data Quality Report

Orbit 38233

Creation date: 2024-06-27T21:50:04.803344
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/AS1A07_145T01_9000005370_38233cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38233cztM0_level2_quad_clean.evt
Size (bytes)363,882,24090,411,840
Size347.0 MB 86.2 MB
Events in quadrant A2,805,840604,111
Events in quadrant B2,700,715621,070
Events in quadrant C2,610,098600,054
Events in quadrant D4,945,232544,771

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114013
B0115182
C0109302
D0185142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5245100.190658%
B5245320.610105%
C5245160.305052%
D52451402.669209%

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 7156 5246 6 6 0.08% 0.11%
B 7156 5246 20 20 0.28% 0.38%
C 7156 5246 12 12 0.17% 0.23%
D 7156 5245 113 113 1.58% 2.15%

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 378168 3158.1 590 578 119.6
A 12 189 60612 502.11 590 578 119.6
A 12 16 59457 492.45 590 578 119.6
B 5 172 290452 2572.68 586 570 112.7
B 0 229 48710 427.24 586 570 112.7
B 4 141 35002 305.58 586 570 112.7
C 15 214 220165 1632.34 575 579 134.5
C 14 254 50301 369.62 575 579 134.5
C 1 23 37837 276.96 575 579 134.5
D 10 203 1749410 12542.59 568 552 139.4
D 7 223 478685 3429.11 568 552 139.4
D 12 233 135036 964.5 568 552 139.4

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