ASTROSAT CZTI

Data Quality Report

Orbit 14392

Creation date: 2024-06-27T16:54:30.066711
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/AS1G08_075T01_9000002120_14392cztM0_level2.evt modeM0/AS1G08_075T01_9000002120_14392cztM0_level2_quad_clean.evt
Size (bytes)596,482,56098,867,520
Size568.9 MB 94.3 MB
Events in quadrant A4,088,871625,142
Events in quadrant B4,434,763614,220
Events in quadrant C4,571,086607,967
Events in quadrant D4,433,255596,374

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170223
B0182402
C0184922
D0184972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79074035.096750%
B79074565.767042%
C79073654.616163%
D79074866.146453%

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 8118 7908 0 0 0.00% 0.00%
B 8118 7908 24 24 0.30% 0.30%
C 8118 7909 3 3 0.04% 0.04%
D 8118 7908 119 119 1.47% 1.50%

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 126362 602.95 1007 984 207.9
A 12 189 81960 389.42 1007 984 207.9
A 3 1 9317 40.07 1007 984 207.9
B 0 189 227902 1161.21 992 966 195.4
B 0 229 115859 587.9 992 966 195.4
B 4 173 90081 455.99 992 966 195.4
C 3 233 763307 3369.28 967 972 226.3
C 14 234 13824 56.8 967 972 226.3
C 8 128 13172 53.92 967 972 226.3
D 2 120 348706 1478.58 966 941 235.2
D 12 110 146729 619.84 966 941 235.2
D 10 199 134042 565.9 966 941 235.2

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