ASTROSAT CZTI

Data Quality Report

Orbit 19829

Creation date: 2024-06-27T18:07:36.574583
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_118T01_9000002962_19829cztM0_level2.evt modeM0/AS1T03_118T01_9000002962_19829cztM0_level2_quad_clean.evt
Size (bytes)491,169,600103,780,800
Size468.4 MB 99.0 MB
Events in quadrant A3,708,765680,877
Events in quadrant B3,721,977695,627
Events in quadrant C3,501,085666,517
Events in quadrant D3,503,850648,457

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150972
B0152482
C0144482
D0146152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6472941.452410%
B64721362.101360%
C64731241.915650%
D6473991.529430%

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 9007 6473 6 6 0.07% 0.09%
B 9007 6472 12 12 0.13% 0.19%
C 9008 6474 0 0 0.00% 0.00%
D 9008 6474 25 25 0.28% 0.39%

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 14 238 302915 1726.21 879 863 175.0
A 14 254 21401 117.37 879 863 175.0
A 0 226 7508 37.98 879 863 175.0
B 10 245 109557 651.73 885 862 166.8
B 0 197 57797 341.38 885 862 166.8
B 7 220 28723 167.05 885 862 166.8
C 14 238 135416 675.24 861 872 199.3
C 3 233 8327 37.41 861 872 199.3
C 13 61 5887 25.17 861 872 199.3
D 1 52 199585 949.61 865 842 209.3
D 2 234 29138 135.2 865 842 209.3
D 7 96 15106 68.15 865 842 209.3

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