ASTROSAT CZTI

Data Quality Report

Orbit 03518

Creation date: 2024-06-27T14:30:25.705445
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_045T01_9000000468_03518cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03518cztM0_level2_quad_clean.evt
Size (bytes)439,145,28083,580,480
Size418.8 MB 79.7 MB
Events in quadrant A2,881,188530,700
Events in quadrant B3,613,294533,480
Events in quadrant C3,540,588523,182
Events in quadrant D2,843,924511,700

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129033
B0150662
C0147272
D0131182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6193370.597449%
B6193500.807363%
C61931632.632004%
D6193400.645891%

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 7463 6194 7 7 0.09% 0.11%
B 7463 6194 3 3 0.04% 0.05%
C 7463 6194 60 60 0.80% 0.97%
D 7463 6194 15 15 0.20% 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 0 149 45207 301.83 720 705 147.4
A 8 15 31904 211.61 720 705 147.4
A 0 226 12654 81.04 720 705 147.4
B 15 204 682623 4901.4 732 715 139.1
B 0 229 34246 241.01 732 715 139.1
B 15 85 20905 145.12 732 715 139.1
C 1 192 625455 3770.43 708 713 165.7
C 6 80 114786 688.45 708 713 165.7
C 1 16 13805 79.01 708 713 165.7
D 13 239 62129 360.26 705 685 170.6
D 5 233 32495 186.51 705 685 170.6
D 2 37 28113 160.82 705 685 170.6

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