ASTROSAT CZTI

Data Quality Report

Orbit 09003

Creation date: 2024-06-27T15:39:59.679182
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/AS1C02_037T01_9000001252_09003cztM0_level2.evt modeM0/AS1C02_037T01_9000001252_09003cztM0_level2_quad_clean.evt
Size (bytes)480,352,32093,412,800
Size458.1 MB 89.1 MB
Events in quadrant A3,964,597606,022
Events in quadrant B3,479,407610,501
Events in quadrant C3,084,847592,835
Events in quadrant D3,584,460573,385

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159753
B0141842
C0132862
D0146082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63931552.424527%
B63931582.471453%
C6393921.439074%
D63931933.018927%

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 7563 6393 3 3 0.04% 0.05%
B 7563 6393 18 18 0.24% 0.28%
C 7563 6393 0 0 0.00% 0.00%
D 7563 6393 76 76 1.00% 1.19%

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 8 5 725696 4325.88 830 814 167.6
A 3 1 19018 108.64 830 814 167.6
A 13 248 13664 76.68 830 814 167.6
B 10 16 83813 527.23 822 803 157.4
B 0 214 68538 430.21 822 803 157.4
B 6 51 35095 217.8 822 803 157.4
C 13 61 6030 28.55 790 793 183.4
C 9 68 2555 9.61 790 793 183.4
C 3 202 2057 6.89 790 793 183.4
D 4 95 258641 1315.42 802 780 196.0
D 1 52 72906 367.94 802 780 196.0
D 14 50 67841 342.1 802 780 196.0

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