ASTROSAT CZTI

Data Quality Report

Orbit 23290

Creation date: 2024-06-27T18:52:25.790915
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/AS1C05_012T03_9000003442_23290cztM0_level2.evt modeM0/AS1C05_012T03_9000003442_23290cztM0_level2_quad_clean.evt
Size (bytes)451,382,400126,417,600
Size430.5 MB 120.6 MB
Events in quadrant A2,925,313875,289
Events in quadrant B2,945,679880,224
Events in quadrant C2,986,003846,144
Events in quadrant D4,417,653820,434

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122601
B0122641
C0123072
D0170201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5821831.425872%
B5821931.597664%
C58211161.992785%
D58214297.369868%

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 7126 5822 2 2 0.03% 0.03%
B 7126 5821 1 1 0.01% 0.02%
C 7126 5821 0 0 0.00% 0.00%
D 7126 5822 301 301 4.22% 5.17%

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 6 16 9371 57.39 755 740 150.4
A 13 254 8708 52.98 755 740 150.4
A 4 208 7278 43.47 755 740 150.4
B 12 111 15421 106.59 745 727 137.9
B 11 111 13825 95.01 745 727 137.9
B 14 111 11553 78.53 745 727 137.9
C 14 238 117896 702.99 729 734 166.7
C 7 247 10977 61.46 729 734 166.7
C 0 239 10853 60.72 729 734 166.7
D 7 238 992708 5578.65 735 714 177.8
D 1 52 367509 2062.73 735 714 177.8
D 12 233 159636 893.73 735 714 177.8

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