ASTROSAT CZTI

Data Quality Report

Orbit 22510

Creation date: 2024-06-27T18:42:08.567346
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/AS1A08_003T01_9000003342_22510cztM0_level2.evt modeM0/AS1A08_003T01_9000003342_22510cztM0_level2_quad_clean.evt
Size (bytes)456,145,92088,764,480
Size435.0 MB 84.7 MB
Events in quadrant A3,210,239561,706
Events in quadrant B3,413,640575,278
Events in quadrant C3,324,935555,904
Events in quadrant D3,428,623546,639

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135642
B0141842
C0138452
D0144672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6425741.151751%
B64241241.930262%
C64241322.054795%
D64241011.572229%

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 7510 6425 0 0 0.00% 0.00%
B 7509 6424 12 12 0.16% 0.19%
C 7509 6424 0 0 0.00% 0.00%
D 7509 6425 48 48 0.64% 0.75%

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 10658 58.59 832 813 168.0
A 0 226 7318 38.71 832 813 168.0
A 3 137 7010 36.88 832 813 168.0
B 15 33 119230 748.31 830 810 158.3
B 0 228 38415 237.63 830 810 158.3
B 12 111 19036 115.17 830 810 158.3
C 14 238 127314 668.61 805 811 189.2
C 0 10 45306 235.17 805 811 189.2
C 10 91 15603 78.18 805 811 189.2
D 1 52 209808 1057.83 810 788 197.6
D 2 120 79037 396.01 810 788 197.6
D 2 234 26274 128.98 810 788 197.6

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