ASTROSAT CZTI

Data Quality Report

Orbit 09630

Creation date: 2024-06-27T15:49:04.133360
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/AS1G07_028T01_9000001370_09630cztM0_level2.evt modeM0/AS1G07_028T01_9000001370_09630cztM0_level2_quad_clean.evt
Size (bytes)384,960,96081,538,560
Size367.1 MB 77.8 MB
Events in quadrant A2,777,474526,227
Events in quadrant B2,736,536526,722
Events in quadrant C2,678,180515,690
Events in quadrant D3,071,701496,630

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160353956
B0161394223
C0161684228
D0177034784

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015341
B015430
C015436
D015434

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58251332.283262%
B57261382.410059%
C57811041.798997%
D56911091.915305%

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 7637 6855 0 0 0.00% 0.00%
B 7637 6762 2 2 0.03% 0.03%
C 7637 6792 0 0 0.00% 0.00%
D 7637 6695 16 16 0.21% 0.24%

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 1 162 33410 225.07 707 692 145.4
A 1 178 9701 61.97 707 692 145.4
A 1 161 9016 57.26 707 692 145.4
B 15 85 21804 156.18 692 675 135.3
B 12 111 15632 110.56 692 675 135.3
B 11 111 12781 89.49 692 675 135.3
C 4 254 27065 166.11 677 681 158.8
C 13 61 4908 26.61 677 681 158.8
C 8 128 3527 17.91 677 681 158.8
D 7 46 264192 1634.18 668 651 161.3
D 1 52 142427 879.13 668 651 161.3
D 13 104 47567 290.92 668 651 161.3

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