ASTROSAT CZTI

Data Quality Report

Orbit 06423

Creation date: 2024-06-27T15:07:01.589748
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/AS1A02_191T02_9000000852_06423cztM0_level2.evt modeM0/AS1A02_191T02_9000000852_06423cztM0_level2_quad_clean.evt
Size (bytes)489,936,96094,775,040
Size467.2 MB 90.4 MB
Events in quadrant A3,021,500605,803
Events in quadrant B3,176,097626,642
Events in quadrant C2,985,463607,516
Events in quadrant D5,202,859566,083

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136283
B0139352
C0136512
D0200652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6652330.496091%
B6652570.856885%
C6652170.255562%
D66522483.728202%

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 8752 6654 0 0 0.00% 0.00%
B 8752 6654 5 5 0.06% 0.08%
C 8752 6654 3 3 0.03% 0.05%
D 8752 6654 169 169 1.93% 2.54%

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 15364 91.68 777 760 159.3
A 13 14 7404 41.71 777 760 159.3
A 0 226 7395 41.65 777 760 159.3
B 4 81 42594 281.24 787 770 148.7
B 15 204 31650 207.65 787 770 148.7
B 3 220 28160 184.18 787 770 148.7
C 9 54 34210 192.1 755 756 174.1
C 13 61 5639 28.04 755 756 174.1
C 8 208 3568 16.15 755 756 174.1
D 11 241 1056641 5841.6 739 712 180.8
D 13 169 675300 3731.95 739 712 180.8
D 2 152 521909 2883.36 739 712 180.8

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