ASTROSAT CZTI

Data Quality Report

Orbit 28629

Creation date: 2024-06-27T19:54:11.108643
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_045T06_9000004108_28629cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28629cztM0_level2_quad_clean.evt
Size (bytes)506,350,08094,305,600
Size482.9 MB 89.9 MB
Events in quadrant A3,190,000614,184
Events in quadrant B4,241,877619,413
Events in quadrant C3,258,015602,846
Events in quadrant D4,216,604578,709

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131671
B0167251
C0133761
D0166151

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6315600.950119%
B63162423.831539%
C63161181.868271%
D63161973.119063%

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 7474 6314 0 0 0.00% 0.00%
B 7475 6315 90 90 1.20% 1.43%
C 7475 6316 0 0 0.00% 0.00%
D 7475 6315 132 132 1.77% 2.09%

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 12 16 12414 70.86 820 804 163.8
A 13 254 11909 67.78 820 804 163.8
A 3 137 7635 41.69 820 804 163.8
B 10 245 1088700 7088.64 800 780 153.5
B 12 111 17929 111.74 800 780 153.5
B 11 111 16507 102.47 800 780 153.5
C 14 238 139301 757.7 787 794 182.8
C 14 254 19175 100.55 787 794 182.8
C 7 247 17397 90.83 787 794 182.8
D 1 52 1019361 5460.55 788 770 186.5
D 8 195 154215 822.6 788 770 186.5
D 2 250 25470 132.41 788 770 186.5

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