ASTROSAT CZTI

Data Quality Report

Orbit 05024

Creation date: 2024-06-27T14:50:19.118888
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/AS1G05_250T02_9000000638_05024cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05024cztM0_level2_quad_clean.evt
Size (bytes)491,054,40064,491,840
Size468.3 MB 61.5 MB
Events in quadrant A3,292,332375,615
Events in quadrant B3,354,121377,166
Events in quadrant C3,518,301373,560
Events in quadrant D4,249,787356,948

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141703
B0142192
C0145682
D0172072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67341311.945352%
B67341311.945352%
C67341131.678052%
D67341972.925453%

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 7804 6735 6 6 0.08% 0.09%
B 7804 6735 1 1 0.01% 0.01%
C 7804 6735 0 0 0.00% 0.00%
D 7804 6735 54 54 0.69% 0.80%

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 4 2 62938 371.55 824 806 167.2
A 0 50 36851 215.55 824 806 167.2
A 0 247 10222 56.31 824 806 167.2
B 15 204 73495 464.22 825 805 156.6
B 0 219 40238 251.83 825 805 156.6
B 15 54 35351 220.62 825 805 156.6
C 1 16 387044 2101.92 793 796 183.8
C 8 128 18164 94.51 793 796 183.8
C 8 112 8326 40.98 793 796 183.8
D 12 227 546978 2828.26 791 765 193.1
D 13 235 258677 1335.46 791 765 193.1
D 2 136 107464 552.48 791 765 193.1

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