ASTROSAT CZTI

Data Quality Report

Orbit 05646

Creation date: 2024-06-27T14:57:33.143156
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_032T02_9000000730_05646cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05646cztM0_level2_quad_clean.evt
Size (bytes)509,322,24078,197,760
Size485.7 MB 74.6 MB
Events in quadrant A3,194,558490,914
Events in quadrant B3,936,017484,153
Events in quadrant C4,268,829479,882
Events in quadrant D3,592,619467,643

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137582
B0158501
C0171541
D0149991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63801041.630094%
B63802033.181818%
C63801231.927900%
D63801011.583072%

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 7490 6381 40 40 0.53% 0.63%
B 7490 6381 79 79 1.05% 1.24%
C 7490 6381 61 61 0.81% 0.96%
D 7490 6381 80 80 1.07% 1.25%

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 0 50 212716 1346.72 767 753 157.4
A 13 6 13719 82.38 767 753 157.4
A 12 194 7910 45.47 767 753 157.4
B 10 16 472943 3206.58 763 747 147.3
B 15 204 160185 1082.71 763 747 147.3
B 0 219 109117 735.92 763 747 147.3
C 1 16 1216066 7153.13 731 735 169.9
C 5 250 158953 931.23 731 735 169.9
C 5 233 27460 157.3 731 735 169.9
D 12 233 222589 1211.21 738 714 183.2
D 2 136 219316 1193.35 738 714 183.2
D 4 95 97224 526.85 738 714 183.2

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