ASTROSAT CZTI

Data Quality Report

Orbit 42348

Creation date: 2024-06-27T22:39:18.229373
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_102T01_9000005798_42348cztM0_level2.fits modeM0/AS1A12_102T01_9000005798_42348cztM0_level2_quad_clean.evt
Size (bytes)313,819,20093,006,720
Size299.3 MB 88.7 MB
Events in quadrant A2,904,725618,785
Events in quadrant B2,493,673625,652
Events in quadrant C2,541,784612,530
Events in quadrant D3,232,867561,507

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123222
B0116622
C0114192
D0138302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5687140.246175%
B5687150.263759%
C568730.052752%
D56871142.004572%

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 7149 5688 4 4 0.06% 0.07%
B 7149 5688 4 4 0.06% 0.07%
C 7149 5688 0 0 0.00% 0.00%
D 7149 5688 95 95 1.33% 1.67%

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 568128 4644.94 595 581 122.2
A 13 248 23418 186.9 595 581 122.2
A 13 254 9848 75.84 595 581 122.2
B 5 255 58188 502.03 594 576 114.8
B 5 172 39410 338.4 594 576 114.8
B 0 245 28366 242.16 594 576 114.8
C 15 214 238291 1743.28 587 590 136.4
C 15 111 5980 39.53 587 590 136.4
C 7 247 4492 28.62 587 590 136.4
D 12 233 224279 1579.86 581 565 141.6
D 1 52 204557 1440.58 581 565 141.6
D 12 6 172140 1211.65 581 565 141.6

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