ASTROSAT CZTI

Data Quality Report

Orbit 11631

Creation date: 2024-06-27T16:16:08.192409
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/AS1A04_198T01_9000001708_11631cztM0_level2.evt modeM0/AS1A04_198T01_9000001708_11631cztM0_level2_quad_clean.evt
Size (bytes)558,253,44076,844,160
Size532.4 MB 73.3 MB
Events in quadrant A5,995,471465,998
Events in quadrant B3,673,776485,822
Events in quadrant C2,754,931479,478
Events in quadrant D4,063,624464,069

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221712
B0151012
C0126112
D0164402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A617696815.673575%
B61762183.529793%
C6176100.161917%
D61764347.027202%

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 6702 6178 497 497 7.42% 8.04%
B 6702 6178 85 85 1.27% 1.38%
C 6702 6178 1 1 0.01% 0.02%
D 6702 6178 181 181 2.70% 2.93%

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 3107779 21888.95 678 661 141.9
A 1 162 97072 679.19 678 661 141.9
A 1 178 56034 390.09 678 661 141.9
B 4 239 697798 5000.68 720 702 139.4
B 11 51 62877 446.02 720 702 139.4
B 15 204 61637 437.12 720 702 139.4
C 14 234 7235 39.82 703 707 164.0
C 13 61 5030 26.37 703 707 164.0
C 1 5 4440 22.77 703 707 164.0
D 13 152 1104427 6798.83 666 647 162.3
D 1 52 220801 1356.06 666 647 162.3
D 13 104 58997 359.41 666 647 162.3

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