ASTROSAT CZTI

Data Quality Report

Orbit 23378

Creation date: 2024-06-27T18:53:33.272145
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/AS1A07_138T09_9000003458_23378cztM0_level2.evt modeM0/AS1A07_138T09_9000003458_23378cztM0_level2_quad_clean.evt
Size (bytes)515,050,56083,476,800
Size491.2 MB 79.6 MB
Events in quadrant A3,094,362537,937
Events in quadrant B3,186,292541,993
Events in quadrant C3,983,102515,508
Events in quadrant D4,916,323501,436

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127371
B0130141
C0156171
D0189821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6169671.086076%
B6170731.183144%
C61702133.452188%
D61702253.646677%

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 7349 6170 0 0 0.00% 0.00%
B 7350 6171 0 0 0.00% 0.00%
C 7350 6170 62 62 0.84% 1.00%
D 7350 6171 133 133 1.81% 2.16%

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 13 254 9734 56.06 803 786 159.6
A 0 226 7043 39.2 803 786 159.6
A 3 137 6493 35.75 803 786 159.6
B 0 189 71476 473.96 790 770 149.2
B 0 190 21389 138.21 790 770 149.2
B 12 111 17376 111.31 790 770 149.2
C 0 239 715215 4044.89 765 771 176.6
C 14 238 121956 686.1 765 771 176.6
C 7 247 103186 579.83 765 771 176.6
D 1 52 1786278 9452.35 780 759 188.9
D 7 223 58116 303.64 780 759 188.9
D 13 104 48443 252.43 780 759 188.9

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