ASTROSAT CZTI

Data Quality Report

Orbit 05581

Creation date: 2024-06-27T14:56:52.866265
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_081T01_9000000720_05581cztM0_level2.evt modeM0/AS1A02_081T01_9000000720_05581cztM0_level2_quad_clean.evt
Size (bytes)641,920,320107,858,880
Size612.2 MB 102.9 MB
Events in quadrant A4,385,373669,937
Events in quadrant B5,237,103666,266
Events in quadrant C4,388,222645,087
Events in quadrant D4,775,061615,841

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01980
B01980
C01982
D01982

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01961739
B02190142
C01988153
D02103135

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9652810.839204%
B96561421.470588%
C9645650.673924%
D9657820.849125%

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 11190 9671 0 0 0.00% 0.00%
B 11190 9672 21 21 0.19% 0.22%
C 11190 9669 3 3 0.03% 0.03%
D 11190 9672 22 22 0.20% 0.23%

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 13 14 21771 88.13 1130 1104 234.5
A 0 226 10898 41.76 1130 1104 234.5
A 12 194 10791 41.31 1130 1104 234.5
B 15 204 506123 2294.82 1139 1111 220.1
B 11 51 96598 433.9 1139 1111 220.1
B 5 172 64767 289.26 1139 1111 220.1
C 1 16 108409 423.4 1094 1095 253.5
C 12 4 8977 31.1 1094 1095 253.5
C 13 61 8664 29.86 1094 1095 253.5
D 2 152 265818 986.72 1094 1059 268.3
D 11 241 112123 413.92 1094 1059 268.3
D 2 14 59090 216.27 1094 1059 268.3

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