ASTROSAT CZTI

Data Quality Report

Orbit 19118

Creation date: 2024-06-27T17:59:15.008949
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/AS1A05_046T01_9000002838_19118cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19118cztM0_level2_quad_clean.evt
Size (bytes)570,732,48085,573,440
Size544.3 MB 81.6 MB
Events in quadrant A3,133,202547,662
Events in quadrant B3,328,762559,313
Events in quadrant C3,170,004543,747
Events in quadrant D7,228,352502,927

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133051
B0139961
C0132631
D0259101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6267420.670177%
B6268891.419911%
C6268661.052967%
D626863810.178685%

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 7407 6268 0 0 0.00% 0.00%
B 7408 6269 15 15 0.20% 0.24%
C 7408 6269 0 0 0.00% 0.00%
D 7408 6269 509 509 6.87% 8.12%

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 9 143 36421 222.36 799 782 160.3
A 11 29 10569 61.06 799 782 160.3
A 4 2 8899 50.64 799 782 160.3
B 7 220 114233 741.47 803 782 153.0
B 0 197 29962 190.71 803 782 153.0
B 12 111 17525 109.43 803 782 153.0
C 14 238 120145 661.79 775 782 180.4
C 3 233 19318 102.77 775 782 180.4
C 0 207 9604 48.91 775 782 180.4
D 7 238 3542951 19224.99 754 734 184.3
D 12 218 517103 2802.54 754 734 184.3
D 11 176 109924 592.62 754 734 184.3

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