ASTROSAT CZTI

Data Quality Report

Orbit 07075

Creation date: 2024-06-27T15:15:14.996483
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/AS1G06_164T01_9000000968_07075cztM0_level2.evt modeM0/AS1G06_164T01_9000000968_07075cztM0_level2_quad_clean.evt
Size (bytes)416,655,360106,295,040
Size397.4 MB 101.4 MB
Events in quadrant A3,220,549690,265
Events in quadrant B3,009,732717,843
Events in quadrant C2,859,711692,977
Events in quadrant D3,087,892666,660

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141333
B0133732
C0132292
D0136642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64702193.384853%
B6470270.417311%
C6470130.200927%
D6470230.355487%

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 8675 6472 153 153 1.76% 2.36%
B 8675 6472 1 1 0.01% 0.02%
C 8675 6472 2 2 0.02% 0.03%
D 8675 6472 9 9 0.10% 0.14%

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 14 111 378892 2539.91 733 718 148.9
A 8 15 12701 80.48 733 718 148.9
A 0 226 6921 41.66 733 718 148.9
B 0 214 70621 492.03 754 736 142.0
B 0 219 16083 108.05 754 736 142.0
B 12 111 14209 94.86 754 736 142.0
C 4 254 24230 140.75 720 723 167.0
C 7 247 19673 113.47 720 723 167.0
C 13 61 5697 29.78 720 723 167.0
D 8 195 241424 1387.08 714 693 173.6
D 12 144 35259 199.17 714 693 173.6
D 12 233 34159 192.83 714 693 173.6

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