ASTROSAT CZTI

Data Quality Report

Orbit 18204

Creation date: 2024-06-27T17:46:43.164393
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/AS1T03_003T01_9000002712_18204cztM0_level2.evt modeM0/AS1T03_003T01_9000002712_18204cztM0_level2_quad_clean.evt
Size (bytes)563,610,24097,168,320
Size537.5 MB 92.7 MB
Events in quadrant A3,784,619607,260
Events in quadrant B3,799,370618,062
Events in quadrant C3,747,798594,285
Events in quadrant D5,209,226581,929

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162502
B0162302
C0161142
D0208212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7780750.964010%
B7780881.131105%
C77801101.413882%
D77803354.305913%

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 9670 7782 13 13 0.13% 0.17%
B 9670 7782 2 2 0.02% 0.03%
C 9671 7783 0 0 0.00% 0.00%
D 9671 7783 205 205 2.12% 2.63%

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 15 174 96272 490.17 957 935 194.5
A 13 210 9775 45.45 957 935 194.5
A 0 226 8373 38.24 957 935 194.5
B 7 220 24650 129.61 955 932 183.0
B 12 111 21882 114.49 955 932 183.0
B 11 111 19022 98.86 955 932 183.0
C 14 238 143187 666.66 914 918 213.4
C 3 233 40512 185.53 914 918 213.4
C 13 61 6351 25.46 914 918 213.4
D 5 222 1025039 4562.48 911 882 224.5
D 7 238 644279 2866.25 911 882 224.5
D 10 70 51584 225.87 911 882 224.5

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