ASTROSAT CZTI

Data Quality Report

Orbit 19372

Creation date: 2024-06-27T18:02:05.357396
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/AS1A05_226T06_9000002864_19372cztM0_level2.evt modeM0/AS1A05_226T06_9000002864_19372cztM0_level2_quad_clean.evt
Size (bytes)777,559,680110,856,960
Size741.5 MB 105.7 MB
Events in quadrant A3,764,835746,124
Events in quadrant B4,013,952750,115
Events in quadrant C3,882,988722,277
Events in quadrant D11,342,122578,114

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166352
B0172002
C0167732
D0393832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8053410.509127%
B80541141.415446%
C8054991.229203%
D8054254931.648870%

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 8628 8055 0 0 0.00% 0.00%
B 8629 8055 17 17 0.20% 0.21%
C 8629 8056 0 0 0.00% 0.00%
D 8629 8054 2009 2009 23.28% 24.94%

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 0 226 8479 37.83 975 952 199.0
A 13 254 8183 36.35 975 952 199.0
A 3 137 7738 34.11 975 952 199.0
B 7 220 66525 355.05 971 944 184.7
B 0 230 42156 223.12 971 944 184.7
B 4 216 23234 120.68 971 944 184.7
C 14 238 145116 646.44 944 949 223.0
C 5 112 32279 140.48 944 949 223.0
C 3 233 6954 26.93 944 949 223.0
D 10 66 4757319 22946.99 839 813 207.3
D 7 238 1536346 7407.93 839 813 207.3
D 1 52 1431746 6903.3 839 813 207.3

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