ASTROSAT CZTI

Data Quality Report

Orbit 09667

Creation date: 2024-06-27T15:49:08.931548
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/AS1G07_046T01_9000001374_09667cztM0_level2.evt modeM0/AS1G07_046T01_9000001374_09667cztM0_level2_quad_clean.evt
Size (bytes)1,299,718,080229,429,440
Size1.2 GB 218.8 MB
Events in quadrant A9,786,2361,405,497
Events in quadrant B9,316,9241,450,002
Events in quadrant C8,982,1011,397,507
Events in quadrant D9,951,4351,346,812

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042424
B042428
C042420
D042428

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0431
B0421
C0421
D0431

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0446373140
B0429182600
C0425932638
D0455562713

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A195061540.789501%
B196261971.003771%
C195981060.540872%
D195731040.531344%

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 25205 20260 9 9 0.04% 0.04%
B 25205 20343 1 1 0.00% 0.00%
C 25205 20329 1 1 0.00% 0.00%
D 25205 20327 20 20 0.08% 0.10%

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 1 162 266295 554.22 2369 2328 476.3
A 1 178 95711 196.06 2369 2328 476.3
A 1 161 94340 193.18 2369 2328 476.3
B 12 111 53426 112.54 2386 2329 454.0
B 11 111 44161 92.13 2386 2329 454.0
B 14 111 35437 72.92 2386 2329 454.0
C 13 61 16991 27.47 2299 2312 534.4
C 8 222 7490 9.69 2299 2312 534.4
C 10 22 6480 7.8 2299 2312 534.4
D 8 195 1022186 1742.1 2271 2224 585.5
D 2 152 117330 196.6 2271 2224 585.5
D 1 52 63364 104.43 2271 2224 585.5

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