ASTROSAT CZTI

Data Quality Report

Orbit 00593

Creation date: 2024-06-27T14:00:17.552471
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/AS1P01_118T02_9000000082_00593cztM0_level2.evt modeM0/AS1P01_118T02_9000000082_00593cztM0_level2_quad_clean.evt
Size (bytes)665,879,04034,767,360
Size635.0 MB 33.2 MB
Events in quadrant A4,982,278189,584
Events in quadrant B5,231,762195,413
Events in quadrant C4,577,911193,214
Events in quadrant D5,097,603181,473

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177101
B0184711
C0165391
D0181141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A414540.096502%
B4145100.241255%
C414510.024125%
D41451303.136309%

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 4145 4145 85 85 2.05% 2.05%
B 4145 4145 104 104 2.51% 2.51%
C 4145 4145 24 24 0.58% 0.58%
D 4145 4145 235 235 5.67% 5.67%

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 24045 80.41 1277 1270 283.2
A 0 238 8648 26.05 1277 1270 283.2
A 13 190 8032 23.87 1277 1270 283.2
B 7 221 210060 697.9 1272 1285 299.1
B 4 250 59761 195.48 1272 1285 299.1
B 4 206 20760 65.1 1272 1285 299.1
C 1 1 21868 64.24 1152 1191 321.9
C 3 159 21250 62.32 1152 1191 321.9
C 15 241 13182 37.26 1152 1191 321.9
D 13 37 321072 922.21 1104 1147 346.9
D 13 216 154708 442.65 1104 1147 346.9
D 1 4 104360 297.52 1104 1147 346.9

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