ASTROSAT CZTI

Data Quality Report

Orbit 29570

Creation date: 2024-06-27T20:05:34.696168
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/AS1C05_019T01_9000004264_29570cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29570cztM0_level2_quad_clean.evt
Size (bytes)498,810,240126,840,960
Size475.7 MB 121.0 MB
Events in quadrant A3,164,810853,981
Events in quadrant B3,352,145886,835
Events in quadrant C3,478,040837,782
Events in quadrant D4,673,107812,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137982
B0143563
C0146842
D0183812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6453600.929800%
B6452941.456913%
C64525127.935524%
D64522163.347799%

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 8698 6455 0 0 0.00% 0.00%
B 8697 6453 7 7 0.08% 0.11%
C 8697 6453 0 0 0.00% 0.00%
D 8697 6454 117 117 1.35% 1.81%

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 0 13 20568 121.67 814 797 162.5
A 13 254 12330 70.98 814 797 162.5
A 3 137 7788 43.02 814 797 162.5
B 0 229 39640 254.32 820 801 152.7
B 0 189 30715 195.88 820 801 152.7
B 0 190 28191 179.35 820 801 152.7
C 14 238 239970 1318.54 783 789 181.4
C 14 254 156661 859.28 783 789 181.4
C 2 114 14980 78.23 783 789 181.4
D 8 195 455142 2433.45 790 770 186.7
D 13 153 443982 2373.68 790 770 186.7
D 13 104 421320 2252.31 790 770 186.7

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