ASTROSAT CZTI

Data Quality Report

Orbit 08616

Creation date: 2024-06-27T15:35:01.595908
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/AS1A03_036T01_9000001204_08616cztM0_level2.evt modeM0/AS1A03_036T01_9000001204_08616cztM0_level2_quad_clean.evt
Size (bytes)557,346,240100,235,520
Size531.5 MB 95.6 MB
Events in quadrant A3,836,962614,494
Events in quadrant B4,567,644626,208
Events in quadrant C3,870,664616,313
Events in quadrant D4,030,367591,999

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175395
B0192044
C0175734
D0182394

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84292983.535413%
B84294685.552260%
C84291822.159212%
D84292452.906632%

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 9094 8429 6 6 0.07% 0.07%
B 9094 8429 111 111 1.22% 1.32%
C 9094 8433 0 0 0.00% 0.00%
D 9094 8433 27 27 0.30% 0.32%

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 15 174 36341 176.24 977 950 200.8
A 8 5 23141 110.51 977 950 200.8
A 13 14 9467 42.41 977 950 200.8
B 10 16 431647 2292.34 983 956 187.9
B 0 214 115395 609.1 983 956 187.9
B 0 219 79039 415.59 983 956 187.9
C 14 64 109328 488.75 961 962 221.7
C 13 61 7238 28.31 961 962 221.7
C 8 222 6177 23.52 961 962 221.7
D 10 253 121489 473.86 943 922 254.4
D 2 136 114740 447.33 943 922 254.4
D 2 14 71647 277.97 943 922 254.4

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