ASTROSAT CZTI

Data Quality Report

Orbit 25111

Creation date: 2024-06-27T19:13:58.427160
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/AS1C05_012T06_9000003674_25111cztM0_level2.evt modeM0/AS1C05_012T06_9000003674_25111cztM0_level2_quad_clean.evt
Size (bytes)507,703,680119,784,960
Size484.2 MB 114.2 MB
Events in quadrant A3,141,071820,826
Events in quadrant B3,257,521832,069
Events in quadrant C3,472,765796,349
Events in quadrant D5,074,678736,730

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136440
B0140010
C0145640
D0195030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6335540.852407%
B6334630.994632%
C63341261.989264%
D63346069.567414%

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 7495 6335 0 0 0.00% 0.00%
B 7494 6334 1 1 0.01% 0.02%
C 7494 6334 12 12 0.16% 0.19%
D 7494 6334 325 325 4.34% 5.13%

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 13 254 10492 59.9 813 798 161.8
A 0 226 7062 38.71 813 798 161.8
A 3 137 7056 38.67 813 798 161.8
B 0 190 72462 478.23 806 786 149.9
B 0 189 20167 129.31 806 786 149.9
B 10 251 17657 112.57 806 786 149.9
C 2 16 124235 679.23 785 792 181.7
C 14 238 123998 677.93 785 792 181.7
C 7 247 72247 393.17 785 792 181.7
D 1 52 1306156 7209.89 757 737 181.1
D 12 33 372696 2054.35 757 737 181.1
D 8 195 280964 1547.71 757 737 181.1

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