ASTROSAT CZTI

Data Quality Report

Orbit 24474

Creation date: 2024-06-27T19:06:21.872480
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_183T01_9000003606_24474cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24474cztM0_level2_quad_clean.evt
Size (bytes)529,001,280124,499,520
Size504.5 MB 118.7 MB
Events in quadrant A2,958,597872,979
Events in quadrant B3,112,154882,984
Events in quadrant C2,952,503830,505
Events in quadrant D6,590,451764,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127821
B0131991
C0127331
D0238061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6007440.732479%
B6007861.431663%
C6007721.198602%
D600782313.700683%

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 7187 6008 0 0 0.00% 0.00%
B 7187 6008 37 37 0.51% 0.62%
C 7187 6008 0 0 0.00% 0.00%
D 7187 6008 797 797 11.09% 13.27%

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 10836 66.19 766 753 152.3
A 0 226 6591 38.33 766 753 152.3
A 3 137 6443 37.35 766 753 152.3
B 6 36 98270 694.34 759 743 140.5
B 7 202 25275 174.65 759 743 140.5
B 12 111 16665 113.36 759 743 140.5
C 14 238 118254 708.44 720 725 165.9
C 2 16 24982 146.22 720 725 165.9
C 13 61 5173 26.81 720 725 165.9
D 1 52 1862224 10825.76 704 683 172.0
D 12 218 1500311 8721.06 704 683 172.0
D 8 195 321959 1868.38 704 683 172.0

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