ASTROSAT CZTI

Data Quality Report

Orbit 08499

Creation date: 2024-06-27T15:33:32.906968
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/AS1G07_060T01_9000001200_08499cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08499cztM0_level2_quad_clean.evt
Size (bytes)490,176,00081,884,160
Size467.5 MB 78.1 MB
Events in quadrant A3,531,022494,960
Events in quadrant B3,655,827498,502
Events in quadrant C3,388,979493,781
Events in quadrant D3,769,603480,630

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155233
B0157162
C0153032
D0160982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73441972.682462%
B73442323.159041%
C73441301.770153%
D73441331.811002%

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 8969 7345 15 15 0.17% 0.20%
B 8969 7345 9 9 0.10% 0.12%
C 8969 7345 0 0 0.00% 0.00%
D 8969 7346 8 8 0.09% 0.11%

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 5 16 54252 291.76 893 873 183.0
A 13 248 29689 157.5 893 873 183.0
A 0 226 8179 39.93 893 873 183.0
B 5 255 75234 426.52 896 872 174.3
B 10 16 41925 235.47 896 872 174.3
B 0 214 36063 201.85 896 872 174.3
C 13 61 6579 28.0 868 871 203.9
C 8 222 3871 14.72 868 871 203.9
C 3 202 2136 6.21 868 871 203.9
D 1 52 377284 1759.04 860 839 214.0
D 7 71 57757 265.97 860 839 214.0
D 2 234 23799 107.29 860 839 214.0

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