ASTROSAT CZTI

Data Quality Report

Orbit 47498

Creation date: 2024-07-10T15:43:18.418621
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/AS1A13_089T01_9000006330_47498cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47498cztM0_level2_quad_clean.evt
Size (bytes)1,470,911,040307,229,760
Size1.4 GB 293.0 MB
Events in quadrant A20,003,6372,020,415
Events in quadrant B13,082,2492,036,867
Events in quadrant C9,118,4842,027,096
Events in quadrant D10,696,9181,837,359

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04080
B04080
C04080
D04080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0745874
B0524164
C0417224
D0461924

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200298744.363673%
B2002911395.686754%
C200303371.682476%
D200306643.315027%

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 21274 20034 17 17 0.08% 0.08%
B 21274 20032 343 343 1.61% 1.71%
C 21275 20036 14 14 0.07% 0.07%
D 21275 20035 269 269 1.26% 1.34%

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 10 83 10853712 22830.74 2274 2218 475.3
A 9 191 181291 376.76 2274 2218 475.3
A 12 236 90165 185.03 2274 2218 475.3
B 0 200 1986184 4458.92 2260 2185 445.0
B 5 32 1504338 3376.0 2260 2185 445.0
B 0 186 291693 650.65 2260 2185 445.0
C 0 207 183967 341.05 2259 2266 532.8
C 12 250 54464 97.98 2259 2266 532.8
C 3 233 32260 56.3 2259 2266 532.8
D 7 38 817162 1429.69 2250 2174 570.0
D 2 249 498188 870.13 2250 2174 570.0
D 2 165 239960 417.13 2250 2174 570.0

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