ASTROSAT CZTI

Data Quality Report

Orbit 25954

Creation date: 2024-06-27T19:23:13.496631
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/AS1A07_068T01_9000003760_25954cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_25954cztM0_level2_quad_clean.evt
Size (bytes)465,511,680102,925,440
Size443.9 MB 98.2 MB
Events in quadrant A3,273,365700,689
Events in quadrant B3,243,830692,787
Events in quadrant C3,120,562647,039
Events in quadrant D4,046,647651,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133010
B0133900
C0130230
D0159940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60891161.905075%
B60901332.183908%
C60901302.134647%
D60902253.694581%

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 7339 6090 0 0 0.00% 0.00%
B 7340 6091 12 12 0.16% 0.20%
C 7340 6091 0 0 0.00% 0.00%
D 7340 6091 118 118 1.61% 1.94%

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 10 229 78760 476.12 828 814 163.7
A 13 254 9508 53.1 828 814 163.7
A 0 226 7217 39.11 828 814 163.7
B 0 190 48611 315.86 801 784 151.4
B 7 219 23356 149.07 801 784 151.4
B 12 111 17708 111.77 801 784 151.4
C 14 238 124698 700.8 763 768 176.8
C 3 233 21253 115.84 763 768 176.8
C 13 61 5209 25.11 763 768 176.8
D 1 52 832579 4423.36 786 767 188.0
D 7 80 165645 876.78 786 767 188.0
D 12 233 45208 236.33 786 767 188.0

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