ASTROSAT CZTI

Data Quality Report

Orbit 43400

Creation date: 2024-06-27T22:51:32.316622
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/AS1A12_018T01_9000005874_43400cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43400cztM0_level2_quad_clean.evt
Size (bytes)300,703,68087,693,120
Size286.8 MB 83.6 MB
Events in quadrant A3,334,098568,231
Events in quadrant B2,326,696611,175
Events in quadrant C2,576,304584,463
Events in quadrant D2,495,684533,204

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131702
B0104542
C0108502
D0111412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51062214.328241%
B5106160.313357%
C510570.137120%
D5105300.587659%

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 7049 5107 145 145 2.06% 2.84%
B 7049 5107 9 9 0.13% 0.18%
C 7048 5106 5 5 0.07% 0.10%
D 7048 5106 24 24 0.34% 0.47%

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 10 83 563796 5043.41 545 535 111.7
A 15 237 400358 3580.0 545 535 111.7
A 13 248 244626 2185.58 545 535 111.7
B 0 189 40058 368.99 560 545 107.1
B 0 190 23836 217.5 560 545 107.1
B 15 85 21515 195.82 560 545 107.1
C 15 214 212821 1651.29 553 558 128.5
C 3 233 152320 1180.63 553 558 128.5
C 15 111 31571 241.26 553 558 128.5
D 1 52 212628 1611.81 545 531 131.6
D 12 6 57951 436.36 545 531 131.6
D 13 249 47223 354.83 545 531 131.6

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