ASTROSAT CZTI

Data Quality Report

Orbit 44154

Creation date: 2024-06-27T22:59:50.337429
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/AS1A13_080T05_9000005952_44154cztM0_level2.fits modeM0/AS1A13_080T05_9000005952_44154cztM0_level2_quad_clean.evt
Size (bytes)494,303,040108,653,760
Size471.4 MB 103.6 MB
Events in quadrant A5,243,352730,594
Events in quadrant B4,495,846750,925
Events in quadrant C3,111,586723,002
Events in quadrant D4,954,970642,521

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203073
B0177122
C0137092
D0191402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63412784.384167%
B63413195.030752%
C6341490.772749%
D63412734.305315%

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 7576 6342 121 121 1.60% 1.91%
B 7576 6342 133 133 1.76% 2.10%
C 7576 6342 18 18 0.24% 0.28%
D 7576 6342 206 206 2.72% 3.25%

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 1648100 10991.63 720 706 149.9
A 15 223 395909 2636.85 720 706 149.9
A 14 238 237378 1579.11 720 706 149.9
B 5 255 217930 1561.82 721 703 139.1
B 0 189 199128 1426.64 721 703 139.1
B 5 172 196720 1409.32 721 703 139.1
C 14 254 178259 1093.9 696 700 162.3
C 15 208 47170 286.29 696 700 162.3
C 3 233 38150 230.72 696 700 162.3
D 13 171 495508 2836.64 686 662 174.4
D 13 187 368803 2110.32 686 662 174.4
D 1 52 344388 1970.37 686 662 174.4

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