ASTROSAT CZTI

Data Quality Report

Orbit 14024

Creation date: 2024-06-27T16:49:18.201454
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/AS1G08_002T01_9000002072_14024cztM0_level2.evt modeM0/AS1G08_002T01_9000002072_14024cztM0_level2_quad_clean.evt
Size (bytes)263,171,52056,373,120
Size251.0 MB 53.8 MB
Events in quadrant A1,860,845369,532
Events in quadrant B1,882,077371,682
Events in quadrant C1,849,480368,614
Events in quadrant D2,143,866354,464

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077622
B078031
C076761
D086621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3424752.190421%
B3424852.482477%
C3424681.985981%
D3424692.015187%

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 4715 3426 1 1 0.02% 0.03%
B 4715 3426 5 5 0.11% 0.15%
C 4715 3426 0 0 0.00% 0.00%
D 4715 3426 4 4 0.08% 0.12%

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 12 189 28083 292.27 469 460 94.5
A 14 111 19488 201.33 469 460 94.5
A 1 162 5189 50.04 469 460 94.5
B 10 16 26918 297.98 462 451 88.8
B 4 173 20135 221.61 462 451 88.8
B 0 214 11598 125.5 462 451 88.8
C 3 233 69439 645.74 456 459 106.8
C 13 61 3204 25.7 456 459 106.8
C 3 202 1005 5.11 456 459 106.8
D 8 195 187732 1566.99 451 444 119.5
D 1 52 142879 1191.71 451 444 119.5
D 13 189 47861 396.72 451 444 119.5

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