ASTROSAT CZTI

Data Quality Report

Orbit 29019

Creation date: 2024-06-27T19:59:15.142156
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/AS1A10_123T02_9000004160_29019cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29019cztM0_level2_quad_clean.evt
Size (bytes)522,132,48099,855,360
Size497.9 MB 95.2 MB
Events in quadrant A3,211,899659,231
Events in quadrant B3,262,909680,423
Events in quadrant C3,313,158636,775
Events in quadrant D5,590,152600,324

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138902
B0139402
C0140892
D0211012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6411640.998284%
B6412721.122895%
C64121111.731129%
D64124176.503431%

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 7511 6412 0 0 0.00% 0.00%
B 7512 6413 2 2 0.03% 0.03%
C 7512 6413 4 4 0.05% 0.06%
D 7512 6413 326 326 4.34% 5.08%

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 13 254 10805 60.49 830 813 165.2
A 3 137 8048 43.8 830 813 165.2
A 0 226 6999 37.45 830 813 165.2
B 0 190 25273 155.99 822 801 156.9
B 12 111 19041 116.27 822 801 156.9
B 11 111 17425 105.97 822 801 156.9
C 14 238 128242 681.25 795 800 187.1
C 2 16 68761 363.29 795 800 187.1
C 2 114 14860 75.16 795 800 187.1
D 1 52 1355178 7316.72 791 771 185.1
D 7 80 786587 4245.1 791 771 185.1
D 8 195 442730 2387.53 791 771 185.1

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