ASTROSAT CZTI

Data Quality Report

Orbit 05992

Creation date: 2024-06-27T15:01:34.079821
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/AS1G06_086T01_9000000774_05992cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05992cztM0_level2_quad_clean.evt
Size (bytes)478,699,200119,473,920
Size456.5 MB 113.9 MB
Events in quadrant A3,305,443797,418
Events in quadrant B3,066,753830,376
Events in quadrant C4,867,737791,666
Events in quadrant D2,832,209761,667

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143313
B0134502
C0188372
D0131382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6273681.084011%
B6273620.988363%
C62731702.710027%
D6273380.605771%

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 7538 6274 16 16 0.21% 0.26%
B 7538 6273 3 3 0.04% 0.05%
C 7538 6274 81 81 1.07% 1.29%
D 7538 6274 5 5 0.07% 0.08%

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 15 234 421915 2869.95 725 709 146.8
A 14 238 66039 445.14 725 709 146.8
A 10 253 23319 154.06 725 709 146.8
B 0 219 73499 515.88 745 729 141.1
B 0 214 39311 273.51 745 729 141.1
B 4 172 20751 141.94 745 729 141.1
C 1 241 2054643 12511.85 714 716 164.2
C 9 54 12356 70.9 714 716 164.2
C 1 16 8604 48.05 714 716 164.2
D 1 239 91161 524.74 709 689 172.4
D 2 206 17489 97.44 709 689 172.4
D 2 14 15205 84.19 709 689 172.4

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