ASTROSAT CZTI

Data Quality Report

Orbit 24115

Creation date: 2024-06-27T19:02:19.985516
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/AS1C05_012T04_9000003564_24115cztM0_level2.evt modeM0/AS1C05_012T04_9000003564_24115cztM0_level2_quad_clean.evt
Size (bytes)269,256,96077,448,960
Size256.8 MB 73.9 MB
Events in quadrant A1,783,000541,881
Events in quadrant B1,814,129546,383
Events in quadrant C1,736,981506,536
Events in quadrant D2,578,179499,651

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0782
B0784
C0793
D0806

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07576306
B07669294
C07632363
D010352392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121
B0121
C0121
D0121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3535401.131542%
B3543591.665255%
C3530421.189802%
D35381002.826456%

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 6985 3551 0 0 0.00% 0.00%
B 6986 3553 1 1 0.01% 0.03%
C 6988 3548 0 0 0.00% 0.00%
D 6986 3560 47 47 0.67% 1.32%

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 13 254 5211 51.26 462 455 92.8
A 0 226 4141 39.73 462 455 92.8
A 3 137 3679 34.75 462 455 92.8
B 0 228 17042 196.49 449 440 84.5
B 5 172 13259 151.71 449 440 84.5
B 0 190 9837 111.21 449 440 84.5
C 14 238 70091 719.99 420 423 96.8
C 0 239 13880 139.07 420 423 96.8
C 7 247 8130 79.65 420 423 96.8
D 8 195 905253 8627.29 436 425 104.9
D 2 234 14284 132.14 436 425 104.9
D 1 52 13819 127.71 436 425 104.9

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