ASTROSAT CZTI

Data Quality Report

Orbit 30952

Creation date: 2024-06-27T20:21:33.524258
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/AS1A10_058T10_9000004472_30952cztM0_level2.evt modeM0/AS1A10_058T10_9000004472_30952cztM0_level2_quad_clean.evt
Size (bytes)665,542,080113,584,320
Size634.7 MB 108.3 MB
Events in quadrant A3,868,388735,429
Events in quadrant B6,232,596736,275
Events in quadrant C4,701,999710,090
Events in quadrant D4,807,731698,080

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166690
B0245540
C0192120
D0192310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80572282.829837%
B80583294.082899%
C80583394.206999%
D80582843.524448%

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 8057 8057 0 0 0.00% 0.00%
B 8058 8058 2 2 0.02% 0.02%
C 8058 8058 17 17 0.21% 0.21%
D 8058 8058 129 129 1.60% 1.60%

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 14141 65.18 999 975 202.0
A 3 137 10307 46.2 999 975 202.0
A 0 226 8358 36.55 999 975 202.0
B 6 159 2275295 11909.58 980 954 191.0
B 0 190 53988 277.71 980 954 191.0
B 12 111 23977 120.56 980 954 191.0
C 3 233 564348 2505.81 955 960 224.8
C 0 10 241197 1068.52 955 960 224.8
C 14 238 155337 686.63 955 960 224.8
D 15 47 517097 2111.66 960 937 244.4
D 8 195 414630 1692.45 960 937 244.4
D 2 250 126244 512.64 960 937 244.4

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