ASTROSAT CZTI

Data Quality Report

Orbit 13188

Creation date: 2024-06-27T16:37:33.120384
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_012T07_9000001958_13188cztM0_level2.evt modeM0/AS1T02_012T07_9000001958_13188cztM0_level2_quad_clean.evt
Size (bytes)538,436,16070,879,680
Size513.5 MB 67.6 MB
Events in quadrant A3,299,329436,176
Events in quadrant B4,620,597394,642
Events in quadrant C3,128,469435,878
Events in quadrant D4,803,208411,971

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140943
B0179762
C0138422
D0187492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67101402.086438%
B671072510.804769%
C6710791.177347%
D67103194.754098%

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 7636 6713 14 14 0.18% 0.21%
B 7636 6713 343 343 4.49% 5.11%
C 7636 6713 0 0 0.00% 0.00%
D 7636 6713 173 173 2.27% 2.58%

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 15 79242 475.81 815 796 164.9
A 8 192 47028 280.42 815 796 164.9
A 12 189 31694 187.41 815 796 164.9
B 4 239 1387877 9325.61 780 761 148.7
B 0 219 76893 511.84 780 761 148.7
B 3 209 34478 226.68 780 761 148.7
C 15 208 7088 34.01 799 804 184.7
C 13 61 5851 27.32 799 804 184.7
C 12 4 3006 11.92 799 804 184.7
D 13 122 1027186 5431.82 780 757 189.0
D 1 52 411664 2174.5 780 757 189.0
D 10 157 224848 1185.88 780 757 189.0

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