ASTROSAT CZTI

Data Quality Report

Orbit 23405

Creation date: 2024-06-27T18:53:56.041577
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_127T02_9000003460_23405cztM0_level2.evt modeM0/AS1A07_127T02_9000003460_23405cztM0_level2_quad_clean.evt
Size (bytes)474,612,480114,793,920
Size452.6 MB 109.5 MB
Events in quadrant A3,417,385792,733
Events in quadrant B3,351,644807,953
Events in quadrant C3,165,284737,753
Events in quadrant D4,038,946725,970

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139597
B0137337
C0129709
D01577914

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01222
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5897961.627946%
B5898851.441166%
C5897951.610989%
D58982173.679213%

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 7265 5900 14 14 0.19% 0.24%
B 7266 5901 7 7 0.10% 0.12%
C 7266 5901 0 0 0.00% 0.00%
D 7266 5901 163 163 2.24% 2.76%

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 6 16 188103 1123.74 838 824 166.7
A 13 254 9156 49.99 838 824 166.7
A 0 226 7339 39.09 838 824 166.7
B 0 189 67539 430.95 827 810 154.8
B 0 190 33808 213.11 827 810 154.8
B 12 111 17703 109.1 827 810 154.8
C 14 238 128001 714.27 774 780 178.1
C 10 9 10243 53.13 774 780 178.1
C 2 16 7199 36.04 774 780 178.1
D 1 52 840582 4374.6 793 772 192.0
D 12 227 132184 684.53 793 772 192.0
D 7 238 37923 193.52 793 772 192.0

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