ASTROSAT CZTI

Data Quality Report

Orbit 47412

Creation date: 2024-07-04T19:35:05.338336
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/AS1A13_053T01_9000006326_47412cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47412cztM0_level2_quad_clean.evt
Size (bytes)688,066,560153,812,160
Size656.2 MB 146.7 MB
Events in quadrant A10,363,1421,009,324
Events in quadrant B4,743,1781,035,138
Events in quadrant C4,778,4061,006,549
Events in quadrant D4,835,590935,471

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376012
B0204082
C0212552
D0214962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01960
B01960
C01960
D01960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A96784814.970035%
B96792142.210972%
C96792422.500258%
D96791952.014671%

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 11248 9678 104 104 0.92% 1.07%
B 11248 9679 25 25 0.22% 0.26%
C 11248 9679 118 118 1.05% 1.22%
D 11249 9680 78 78 0.69% 0.81%

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 10 83 5204337 23399.36 1065 1040 222.4
A 9 191 1005975 4519.22 1065 1040 222.4
A 0 243 12904 53.35 1065 1040 222.4
B 4 227 58636 272.64 1072 1037 211.3
B 5 171 55817 259.3 1072 1037 211.3
B 5 255 55417 257.41 1072 1037 211.3
C 0 207 346507 1382.16 1060 1062 249.9
C 12 2 245917 979.69 1060 1062 249.9
C 3 233 52304 205.02 1060 1062 249.9
D 2 249 324553 1227.41 1064 1029 263.6
D 4 222 103286 387.95 1064 1029 263.6
D 7 38 74757 279.71 1064 1029 263.6

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