ASTROSAT CZTI

Data Quality Report

Orbit 33133

Creation date: 2024-06-27T20:45:19.432299
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/AS1A11_096T01_9000004766_33133cztM0_level2.evt modeM0/AS1A11_096T01_9000004766_33133cztM0_level2_quad_clean.evt
Size (bytes)566,225,28053,521,920
Size540.0 MB 51.0 MB
Events in quadrant A2,799,280326,207
Events in quadrant B3,835,460325,103
Events in quadrant C3,380,697311,816
Events in quadrant D6,777,543289,474

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114503
B0148242
C0133152
D0239242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525270.133283%
B52522294.360244%
C52521482.817974%
D5252124423.686215%

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 7285 5253 0 0 0.00% 0.00%
B 7285 5253 141 141 1.94% 2.68%
C 7285 5253 98 98 1.35% 1.87%
D 7285 5253 1000 1000 13.73% 19.04%

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 13 6 12080 80.27 721 708 141.7
A 13 254 10188 66.92 721 708 141.7
A 0 226 6516 41.0 721 708 141.7
B 5 172 689519 5325.1 702 688 129.4
B 0 189 137916 1060.86 702 688 129.4
B 0 219 87876 674.02 702 688 129.4
C 0 10 374665 2469.28 671 677 151.5
C 9 187 174252 1146.04 671 677 151.5
C 7 221 70625 461.84 671 677 151.5
D 8 195 1303606 8894.47 604 592 146.5
D 14 52 764176 5212.28 604 592 146.5
D 2 249 613495 4183.72 604 592 146.5

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