ASTROSAT CZTI

Data Quality Report

Orbit 13043

Creation date: 2024-06-27T16:35:41.637250
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/AS1A04_149T01_9000001918_13043cztM0_level2.evt modeM0/AS1A04_149T01_9000001918_13043cztM0_level2_quad_clean.evt
Size (bytes)506,669,76093,124,800
Size483.2 MB 88.8 MB
Events in quadrant A3,254,338614,541
Events in quadrant B5,505,925553,118
Events in quadrant C3,037,610616,892
Events in quadrant D3,108,579585,532

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136523
B0204512
C0132612
D0135472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64491281.984804%
B6449113417.584122%
C64491041.612653%
D64491001.550628%

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 7485 6451 0 0 0.00% 0.00%
B 7485 6451 682 682 9.11% 10.57%
C 7485 6451 0 0 0.00% 0.00%
D 7485 6451 4 4 0.05% 0.06%

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 12 189 87722 547.24 784 768 158.9
A 8 15 62808 390.45 784 768 158.9
A 1 162 46079 285.16 784 768 158.9
B 4 239 2546418 19312.52 710 692 131.8
B 0 219 114798 865.64 710 692 131.8
B 3 209 32806 243.62 710 692 131.8
C 13 61 5556 26.81 777 783 178.0
C 14 234 4215 19.28 777 783 178.0
C 12 4 3936 17.71 777 783 178.0
D 1 52 92945 503.88 768 747 183.0
D 8 195 75612 409.15 768 747 183.0
D 10 157 24070 127.46 768 747 183.0

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