ASTROSAT CZTI

Data Quality Report

Orbit 15043

Creation date: 2024-06-27T17:02:59.196680
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_060T01_9000002216_15043cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15043cztM0_level2_quad_clean.evt
Size (bytes)587,782,08097,217,280
Size560.6 MB 92.7 MB
Events in quadrant A4,250,659594,682
Events in quadrant B4,291,686605,623
Events in quadrant C4,572,572585,450
Events in quadrant D4,108,568567,708

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179903
B0180792
C0184552
D0181692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85033754.410208%
B85033914.598377%
C85032913.422322%
D85033003.528167%

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 9109 8504 0 0 0.00% 0.00%
B 9109 8504 10 10 0.11% 0.12%
C 9109 8505 0 0 0.00% 0.00%
D 9109 8504 24 24 0.26% 0.28%

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 12 189 88713 395.45 1078 1052 221.7
A 1 162 10263 41.55 1078 1052 221.7
A 0 226 9365 37.5 1078 1052 221.7
B 10 245 29540 136.66 1071 1042 208.5
B 12 111 26093 120.13 1071 1042 208.5
B 4 80 23374 107.09 1071 1042 208.5
C 3 233 483788 1980.6 1045 1050 243.7
C 13 61 7489 26.42 1045 1050 243.7
C 8 128 5396 17.83 1045 1050 243.7
D 10 70 108166 415.91 1045 1013 257.6
D 2 234 30619 114.91 1045 1013 257.6
D 2 152 23207 86.14 1045 1013 257.6

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