ASTROSAT CZTI

Data Quality Report

Orbit 26010

Creation date: 2024-06-27T19:23:48.261143
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_068T01_9000003760_26010cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_26010cztM0_level2_quad_clean.evt
Size (bytes)682,692,480108,509,760
Size651.1 MB 103.5 MB
Events in quadrant A3,866,482752,984
Events in quadrant B3,587,252756,816
Events in quadrant C3,551,144720,048
Events in quadrant D9,248,122619,502

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156740
B0147250
C0147780
D0318880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62571752.796868%
B62571141.821959%
C62571883.004635%
D6257169927.153588%

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 7532 6257 61 61 0.81% 0.97%
B 7532 6257 1 1 0.01% 0.02%
C 7532 6257 0 0 0.00% 0.00%
D 7532 6257 1492 1492 19.81% 23.85%

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 0 13 339338 1884.13 916 901 179.6
A 13 254 8978 44.97 916 901 179.6
A 0 226 7978 39.4 916 901 179.6
B 10 245 64373 384.76 894 875 165.0
B 12 111 19664 113.85 894 875 165.0
B 11 111 17521 100.87 894 875 165.0
C 14 238 142757 711.17 871 879 199.5
C 3 233 10216 46.8 871 879 199.5
C 2 16 6799 29.67 871 879 199.5
D 1 52 5974973 29997.5 823 803 199.2
D 12 233 91812 456.97 823 803 199.2
D 8 195 28473 138.94 823 803 199.2

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