ASTROSAT CZTI

Data Quality Report

Orbit 22968

Creation date: 2024-06-27T18:48:07.422508
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/AS1A07_062T01_9000003392_22968cztM0_level2.evt modeM0/AS1A07_062T01_9000003392_22968cztM0_level2_quad_clean.evt
Size (bytes)454,368,96092,626,560
Size433.3 MB 88.3 MB
Events in quadrant A3,161,291605,196
Events in quadrant B3,059,516614,016
Events in quadrant C3,145,781578,789
Events in quadrant D3,965,134566,566

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135152
B0131542
C0133672
D0161312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6315210.332542%
B6315280.443389%
C6315811.282660%
D63151041.646873%

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 7450 6316 3 3 0.04% 0.05%
B 7450 6316 3 3 0.04% 0.05%
C 7450 6316 7 7 0.09% 0.11%
D 7450 6316 60 60 0.81% 0.95%

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 6 16 134307 866.86 771 756 154.1
A 13 170 50572 323.35 771 756 154.1
A 13 254 10797 65.17 771 756 154.1
B 12 111 17421 113.71 771 752 146.6
B 11 111 15401 99.93 771 752 146.6
B 0 189 14857 96.22 771 752 146.6
C 14 238 117595 670.26 744 749 174.3
C 0 10 98675 561.73 744 749 174.3
C 0 239 24337 135.31 744 749 174.3
D 1 52 625878 3445.34 753 731 181.4
D 13 172 171834 942.99 753 731 181.4
D 13 153 146399 802.81 753 731 181.4

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