ASTROSAT CZTI

Data Quality Report

Orbit 07126

Creation date: 2024-06-27T15:15:56.637200
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/AS1G06_051T01_9000000972_07126cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07126cztM0_level2_quad_clean.evt
Size (bytes)575,792,64079,234,560
Size549.1 MB 75.6 MB
Events in quadrant A3,882,151464,422
Events in quadrant B4,131,764472,308
Events in quadrant C3,824,326463,674
Events in quadrant D5,059,723445,309

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168262
B0174551
C0170061
D0202731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79622242.813363%
B79622513.152474%
C79622292.876162%
D79623734.684753%

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 8412 7962 3 3 0.04% 0.04%
B 8412 7962 5 5 0.06% 0.06%
C 8412 7962 37 37 0.44% 0.46%
D 8412 7962 136 136 1.62% 1.71%

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 69326 341.05 976 953 200.5
A 14 111 33639 163.04 976 953 200.5
A 0 226 9767 43.97 976 953 200.5
B 0 214 105640 552.68 976 952 189.4
B 3 220 80492 419.92 976 952 189.4
B 4 173 76059 396.52 976 952 189.4
C 4 254 129778 576.6 945 948 223.4
C 10 22 7934 31.27 945 948 223.4
C 13 61 7427 29.0 945 948 223.4
D 2 216 658474 2802.49 945 914 234.6
D 8 195 480213 2042.75 945 914 234.6
D 14 34 151156 640.32 945 914 234.6

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