ASTROSAT CZTI

Data Quality Report

Orbit 14337

Creation date: 2024-06-27T16:53:42.547998
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/AS1G08_078T01_9000002110_14337cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14337cztM0_level2_quad_clean.evt
Size (bytes)983,332,800163,108,800
Size937.8 MB 155.6 MB
Events in quadrant A5,980,8391,040,444
Events in quadrant B6,785,3271,027,007
Events in quadrant C6,199,0221,024,129
Events in quadrant D9,972,401985,934

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02560
B02560
C02560
D02560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257933
B0283102
C0256352
D0382302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12468540.433109%
B124682822.261790%
C12468420.336862%
D124683362.694899%

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 13784 12470 0 0 0.00% 0.00%
B 13784 12470 179 179 1.30% 1.44%
C 13784 12471 1 1 0.01% 0.01%
D 13784 12471 229 229 1.66% 1.84%

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 12 189 149493 493.33 1483 1455 300.1
A 8 15 127170 418.94 1483 1455 300.1
A 0 226 13048 38.63 1483 1455 300.1
B 10 16 601544 2126.36 1466 1431 282.2
B 10 245 310064 1093.57 1466 1431 282.2
B 0 189 52778 181.93 1466 1431 282.2
C 3 233 586099 1738.55 1439 1446 336.3
C 13 61 10271 26.24 1439 1446 336.3
C 14 234 7475 17.93 1439 1446 336.3
D 12 110 1339356 3960.7 1421 1387 337.8
D 8 195 1010067 2985.93 1421 1387 337.8
D 1 52 584762 1726.93 1421 1387 337.8

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