ASTROSAT CZTI

Data Quality Report

Orbit 04554

Creation date: 2024-06-27T14:43:44.049410
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_233T10_9000000570_04554cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04554cztM0_level2_quad_clean.evt
Size (bytes)514,555,20082,800,000
Size490.7 MB 79.0 MB
Events in quadrant A3,875,716517,233
Events in quadrant B3,284,354525,378
Events in quadrant C3,727,423508,946
Events in quadrant D4,241,794489,268

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161943
B0143402
C0157722
D0173252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66792543.802965%
B6679691.033089%
C66792103.144183%
D66793535.285222%

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 7654 6680 189 189 2.47% 2.83%
B 7654 6680 21 21 0.27% 0.31%
C 7654 6680 151 151 1.97% 2.26%
D 7654 6680 294 294 3.84% 4.40%

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 31 671434 4421.12 747 731 151.7
A 10 253 135868 890.79 747 731 151.7
A 13 14 45583 295.65 747 731 151.7
B 4 80 73417 492.97 765 745 147.4
B 15 204 67758 454.58 765 745 147.4
B 10 16 53697 359.2 765 745 147.4
C 14 48 784244 4560.21 731 733 171.8
C 7 247 65205 375.24 731 733 171.8
C 9 54 14522 80.26 731 733 171.8
D 13 235 431261 2437.19 720 697 176.7
D 2 37 317574 1793.67 720 697 176.7
D 13 25 222365 1254.74 720 697 176.7

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