ASTROSAT CZTI

Data Quality Report

Orbit 15324

Creation date: 2024-06-27T17:06:53.880259
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/AS1T02_073T01_9000002260_15324cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15324cztM0_level2_quad_clean.evt
Size (bytes)604,967,04095,955,840
Size576.9 MB 91.5 MB
Events in quadrant A5,997,718554,255
Events in quadrant B3,757,405627,989
Events in quadrant C3,857,686611,044
Events in quadrant D4,201,554592,023

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225783
B0158202
C0159852
D0175772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A747493912.563554%
B74741391.859781%
C74741071.431630%
D74743785.057533%

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 9475 7475 746 746 7.87% 9.98%
B 9475 7475 1 1 0.01% 0.01%
C 9475 7475 0 0 0.00% 0.00%
D 9475 7475 208 208 2.20% 2.78%

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 15 239 2530868 14030.21 899 881 180.3
A 4 2 14772 77.03 899 881 180.3
A 0 226 7689 37.75 899 881 180.3
B 10 16 24885 133.07 947 924 180.1
B 12 111 22004 117.07 947 924 180.1
B 11 111 19099 100.94 947 924 180.1
C 3 233 253213 1187.94 922 928 212.4
C 7 247 10025 42.84 922 928 212.4
C 13 61 6667 27.02 922 928 212.4
D 13 122 710542 3235.45 904 879 219.3
D 2 33 60371 271.23 904 879 219.3
D 2 234 22458 98.38 904 879 219.3

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