ASTROSAT CZTI

Data Quality Report

Orbit 22336

Creation date: 2024-06-27T18:39:38.507475
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/AS1T03_147T01_9000003306_22336cztM0_level2.evt modeM0/AS1T03_147T01_9000003306_22336cztM0_level2_quad_clean.evt
Size (bytes)437,837,76098,910,720
Size417.6 MB 94.3 MB
Events in quadrant A3,133,561638,846
Events in quadrant B3,194,051661,359
Events in quadrant C3,289,778633,884
Events in quadrant D3,209,560616,996

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131532
B0132682
C0133872
D0135572

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6366170.267044%
B6366380.596921%
C6366821.288093%
D6366200.314169%

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 7551 6367 0 0 0.00% 0.00%
B 7551 6367 0 0 0.00% 0.00%
C 7551 6367 0 0 0.00% 0.00%
D 7551 6367 10 10 0.13% 0.16%

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 8876 49.59 813 796 162.9
A 0 226 6855 37.19 813 796 162.9
A 3 137 6711 36.31 813 796 162.9
B 12 111 18295 115.04 817 796 152.1
B 11 111 16158 100.99 817 796 152.1
B 14 111 14418 89.55 817 796 152.1
C 14 238 127302 670.81 806 813 188.6
C 0 10 14682 73.55 806 813 188.6
C 9 54 7747 36.77 806 813 188.6
D 13 174 86545 441.71 804 784 194.2
D 1 52 69140 352.07 804 784 194.2
D 2 234 23308 116.01 804 784 194.2

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