ASTROSAT CZTI

Data Quality Report

Orbit 06323

Creation date: 2024-06-27T15:05:39.879326
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/AS1G06_028T01_9000000834_06323cztM0_level2.evt modeM0/AS1G06_028T01_9000000834_06323cztM0_level2_quad_clean.evt
Size (bytes)124,724,16024,402,240
Size118.9 MB 23.3 MB
Events in quadrant A875,626159,200
Events in quadrant B902,121162,923
Events in quadrant C798,452156,831
Events in quadrant D1,096,507148,207

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035052
B036211
C032421
D042961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1501503.331113%
B1501533.530979%
C1501191.265823%
D1501664.397069%

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 2706 1502 0 0 0.00% 0.00%
B 2706 1502 4 4 0.15% 0.27%
C 2706 1502 0 0 0.00% 0.00%
D 2706 1502 18 18 0.67% 1.20%

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 0 31 31444 686.97 216 211 45.5
A 15 236 7772 166.3 216 211 45.5
A 13 251 2646 53.56 216 211 45.5
B 3 64 33060 756.73 216 213 43.4
B 4 81 28307 647.23 216 213 43.4
B 12 111 4049 88.37 216 213 43.4
C 4 254 8696 175.78 202 203 48.3
C 13 61 1631 29.56 202 203 48.3
C 8 222 647 9.19 202 203 48.3
D 12 221 280966 5572.14 201 195 50.4
D 12 220 18912 371.46 201 195 50.4
D 5 97 11935 232.99 201 195 50.4

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