ASTROSAT CZTI

Data Quality Report

Orbit 06186

Creation date: 2024-06-27T15:03:54.458932
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/AS1A02_152T01_9000000806_06186cztM0_level2.evt modeM0/AS1A02_152T01_9000000806_06186cztM0_level2_quad_clean.evt
Size (bytes)121,835,52032,443,200
Size116.2 MB 30.9 MB
Events in quadrant A876,480207,326
Events in quadrant B951,144221,835
Events in quadrant C856,982209,738
Events in quadrant D867,332198,956

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07030
B06927
C07026
D07028

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082284212
B074983216
C070973009
D072673180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042
B043
C040
D042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1913170.888657%
B1993110.551932%
C200210.049950%
D194220.102987%

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 3607 2529 11 11 0.30% 0.43%
B 3604 2651 0 0 0.00% 0.00%
C 3769 2687 0 0 0.00% 0.00%
D 3598 2624 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 31423 672.71 216 212 46.4
A 8 15 12325 261.08 216 212 46.4
A 0 226 2084 40.35 216 212 46.4
B 3 64 35762 766.78 230 225 46.3
B 4 80 13176 279.44 230 225 46.3
B 10 246 6558 136.65 230 225 46.3
C 1 16 4937 88.17 218 218 53.5
C 13 61 1759 28.79 218 218 53.5
C 3 202 640 7.88 218 218 53.5
D 2 136 59857 1112.77 210 203 53.6
D 2 14 6687 120.95 210 203 53.6
D 5 97 5540 99.55 210 203 53.6

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