ASTROSAT CZTI

Data Quality Report

Orbit 20240103_A13_080T01_9000006012_level2

Creation date: 2024-01-05T15:06:30.918062
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_080T01_9000006012cztM0_level2.fits modeM0/AS1A13_080T01_9000006012cztM0_level2_quad_clean.evt
Size (bytes)294,768,000402,220,800
Size281.1 MB 383.6 MB
Events in quadrant A1,737,5922,633,957
Events in quadrant B1,668,0362,601,592
Events in quadrant C1,743,0722,546,042
Events in quadrant D1,390,1782,015,053

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07060
B07060
C07060
D07060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01094220
B0898140
C0730760
D01414960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A347069012.596093%
B3470817975.177481%
C347082740.789443%
D34708513514.794860%

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 38282 34707 0 0 0.00% 0.00%
B 38283 34685 0 0 0.00% 0.00%
C 38283 34708 0 0 0.00% 0.00%
D 38283 34672 0 0 0.00% 0.00%

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 15 236 1403 8.31 453 424 117.8
A 7 110 1400 8.28 453 424 117.8
A 0 29 1382 8.13 453 424 117.8
B 2 9 1555 12.88 442 421 88.1
B 2 8 1207 8.92 442 421 88.1
B 3 17 1203 8.88 442 421 88.1
C 3 202 1399 8.08 462 431 119.8
C 1 81 1386 7.97 462 431 119.8
C 3 203 1369 7.83 462 431 119.8
D 8 176 1354 8.8 399 362 112.7
D 6 79 1048 6.09 399 362 112.7
D 10 189 1036 5.98 399 362 112.7

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