ASTROSAT CZTI

Data Quality Report

Orbit 13334

Creation date: 2024-06-27T16:39:16.641244
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/AS1A04_101T01_9000001984_13334cztM0_level2.evt modeM0/AS1A04_101T01_9000001984_13334cztM0_level2_quad_clean.evt
Size (bytes)485,412,48099,040,320
Size462.9 MB 94.5 MB
Events in quadrant A3,519,392624,267
Events in quadrant B3,769,254645,238
Events in quadrant C3,548,062625,977
Events in quadrant D3,366,934594,646

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153713
B0160212
C0152052
D0152682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7310801.094391%
B73101662.270862%
C7310480.656635%
D7310420.574555%

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 8676 7313 4 4 0.05% 0.05%
B 8676 7313 18 18 0.21% 0.25%
C 8676 7313 0 0 0.00% 0.00%
D 8676 7313 2 2 0.02% 0.03%

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 8 15 34046 180.94 896 878 183.3
A 9 143 24148 126.94 896 878 183.3
A 12 96 13030 66.29 896 878 183.3
B 0 197 82148 461.26 904 880 176.2
B 3 64 69835 391.37 904 880 176.2
B 3 209 31441 173.46 904 880 176.2
C 3 233 113587 549.85 878 883 205.0
C 13 61 6390 26.87 878 883 205.0
C 8 128 4268 16.51 878 883 205.0
D 2 234 24553 112.8 867 844 210.2
D 14 206 18450 83.77 867 844 210.2
D 14 35 18077 81.99 867 844 210.2

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