ASTROSAT CZTI

Data Quality Report

Orbit 15323

Creation date: 2024-06-27T17:06:52.833489
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/AS1T02_073T01_9000002260_15323cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15323cztM0_level2_quad_clean.evt
Size (bytes)459,299,52071,504,640
Size438.0 MB 68.2 MB
Events in quadrant A3,218,019429,567
Events in quadrant B3,270,437435,459
Events in quadrant C3,390,369424,707
Events in quadrant D3,576,382408,704

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138213
B0138292
C0139282
D0151172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66841061.585877%
B66841121.675643%
C6684861.286655%
D66842043.052065%

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 8420 6685 0 0 0.00% 0.00%
B 8420 6685 1 1 0.01% 0.01%
C 8420 6685 0 0 0.00% 0.00%
D 8420 6685 108 108 1.28% 1.62%

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 4 2 15429 86.92 832 813 168.2
A 0 226 7004 36.82 832 813 168.2
A 12 194 6034 31.05 832 813 168.2
B 6 36 20600 123.71 826 804 160.0
B 12 111 19621 117.6 826 804 160.0
B 11 111 17014 101.3 826 804 160.0
C 3 233 262202 1402.03 800 804 186.4
C 7 247 10946 54.4 800 804 186.4
C 13 61 5742 26.49 800 804 186.4
D 2 33 506821 2574.47 801 777 196.6
D 10 70 22874 112.42 801 777 196.6
D 2 234 18613 90.74 801 777 196.6

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