ASTROSAT CZTI

Data Quality Report

Orbit 13965

Creation date: 2024-06-27T16:48:30.618081
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_225T01_9000002062_13965cztM0_level2.evt modeM0/AS1A04_225T01_9000002062_13965cztM0_level2_quad_clean.evt
Size (bytes)463,910,40082,134,720
Size442.4 MB 78.3 MB
Events in quadrant A3,337,246515,375
Events in quadrant B3,430,345527,035
Events in quadrant C3,216,862509,537
Events in quadrant D3,629,629487,980

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141913
B0143792
C0137622
D0151202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6404951.483448%
B6404951.483448%
C6404731.139913%
D64041492.326671%

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 7580 6406 0 0 0.00% 0.00%
B 7580 6406 6 6 0.08% 0.09%
C 7580 6406 0 0 0.00% 0.00%
D 7580 6406 75 75 0.99% 1.17%

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 61276 363.26 824 807 166.5
A 14 111 58375 345.83 824 807 166.5
A 1 162 17710 101.54 824 807 166.5
B 0 189 81052 520.71 826 808 154.1
B 3 209 26714 168.11 826 808 154.1
B 0 190 25851 162.51 826 808 154.1
C 3 233 106199 580.94 792 795 181.4
C 8 222 15963 83.6 792 795 181.4
C 13 61 5785 27.5 792 795 181.4
D 15 0 143707 707.77 778 763 202.0
D 8 195 108955 535.7 778 763 202.0
D 13 189 99977 491.24 778 763 202.0

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