ASTROSAT CZTI

Data Quality Report

Orbit 14487

Creation date: 2024-06-27T16:55:52.329062
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_034T02_9000002136_14487cztM0_level2.evt modeM0/AS1G08_034T02_9000002136_14487cztM0_level2_quad_clean.evt
Size (bytes)461,571,84096,937,920
Size440.2 MB 92.4 MB
Events in quadrant A3,217,484628,737
Events in quadrant B3,429,633634,309
Events in quadrant C3,429,022628,951
Events in quadrant D3,484,754613,996

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135993
B0144532
C0143202
D0146052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6153480.780107%
B6153641.040143%
C6153390.633837%
D61531021.657728%

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 7449 6155 8 8 0.11% 0.13%
B 7449 6155 7 7 0.09% 0.11%
C 7449 6155 0 0 0.00% 0.00%
D 7449 6155 35 35 0.47% 0.57%

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 4 2 48180 292.02 806 791 162.3
A 8 15 28266 169.31 806 791 162.3
A 12 189 15403 90.04 806 791 162.3
B 0 189 103890 678.92 811 794 151.9
B 0 229 44178 285.7 811 794 151.9
B 10 252 39415 254.33 811 794 151.9
C 3 233 216819 1176.88 798 806 183.5
C 0 207 98623 532.92 798 806 183.5
C 13 61 5680 26.55 798 806 183.5
D 2 120 389401 1978.55 789 770 196.4
D 10 199 41077 205.21 789 770 196.4
D 2 234 28163 139.46 789 770 196.4

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