ASTROSAT CZTI

Data Quality Report

Orbit 23772

Creation date: 2024-06-27T18:58:35.157654
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_180T01_9000003524_23772cztM0_level2.evt modeM0/AS1T03_180T01_9000003524_23772cztM0_level2_quad_clean.evt
Size (bytes)605,946,240110,093,760
Size577.9 MB 105.0 MB
Events in quadrant A3,671,920709,459
Events in quadrant B3,961,002723,057
Events in quadrant C3,791,309699,162
Events in quadrant D6,405,205666,597

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159751
B0165571
C0160621
D0243541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77001321.714286%
B77001782.311688%
C77001972.558442%
D77001692.194805%

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 7735 7701 0 0 0.00% 0.00%
B 7735 7701 6 6 0.08% 0.08%
C 7735 7701 0 0 0.00% 0.00%
D 7735 7701 59 59 0.76% 0.77%

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 8 4 19455 96.14 946 925 192.7
A 13 254 13851 67.07 946 925 192.7
A 3 137 8491 39.26 946 925 192.7
B 0 229 69725 375.1 945 920 183.4
B 0 189 52391 280.6 945 920 183.4
B 3 64 33672 178.55 945 920 183.4
C 14 238 142343 644.35 922 929 219.5
C 7 247 32830 145.35 922 929 219.5
C 8 128 12783 54.01 922 929 219.5
D 7 238 1910346 8437.5 926 899 226.3
D 8 195 498703 2199.71 926 899 226.3
D 1 52 377069 1662.23 926 899 226.3

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