ASTROSAT CZTI

Data Quality Report

Orbit 14607

Creation date: 2024-06-27T16:57:26.296999
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_059T01_9000002150_14607cztM0_level2.evt modeM0/AS1G08_059T01_9000002150_14607cztM0_level2_quad_clean.evt
Size (bytes)487,229,76095,319,360
Size464.7 MB 90.9 MB
Events in quadrant A3,461,425610,176
Events in quadrant B3,404,388607,820
Events in quadrant C3,905,521598,871
Events in quadrant D3,520,819593,948

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147353
B0145742
C0160512
D0152012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6831831.215049%
B68311181.727419%
C6831811.185771%
D6831731.068658%

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 7632 6833 0 0 0.00% 0.00%
B 7632 6833 6 6 0.08% 0.09%
C 7632 6833 0 0 0.00% 0.00%
D 7632 6833 48 48 0.63% 0.70%

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 1 162 60321 348.07 843 826 170.9
A 0 23 55739 321.26 843 826 170.9
A 8 15 44149 253.46 843 826 170.9
B 0 205 24390 145.78 843 823 161.7
B 0 229 22699 135.32 843 823 161.7
B 12 111 19389 114.84 843 823 161.7
C 3 233 697723 3624.42 822 826 192.3
C 13 61 5907 26.43 822 826 192.3
C 0 207 3703 14.96 822 826 192.3
D 10 199 169847 866.53 817 799 195.1
D 12 110 166053 847.09 817 799 195.1
D 2 152 30085 150.12 817 799 195.1

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