ASTROSAT CZTI

Data Quality Report

Orbit 47217

Creation date: 2024-06-27T23:32:59.473199
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_019T01_9000006302_47217cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47217cztM0_level2_quad_clean.evt
Size (bytes)541,944,000115,994,880
Size516.8 MB 110.6 MB
Events in quadrant A8,306,449746,981
Events in quadrant B4,361,227790,153
Events in quadrant C3,306,968770,899
Events in quadrant D3,526,032700,953

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0303452
B0176472
C0150182
D0155922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72275577.707209%
B72273574.939809%
C7227891.231493%
D72271441.992528%

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 7802 7227 99 99 1.27% 1.37%
B 7802 7227 115 115 1.47% 1.59%
C 7802 7228 1 1 0.01% 0.01%
D 7802 7227 34 34 0.44% 0.47%

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 4066286 23570.73 822 803 172.5
A 9 191 970480 5621.96 822 803 172.5
A 15 235 76283 437.62 822 803 172.5
B 0 190 355549 2140.91 831 805 165.7
B 12 3 270029 1624.79 831 805 165.7
B 5 32 225975 1358.92 831 805 165.7
C 14 254 45395 231.2 822 823 192.8
C 15 208 43562 221.69 822 823 192.8
C 3 233 8374 39.17 822 823 192.8
D 8 240 113113 542.48 826 797 207.0
D 10 253 79523 380.24 826 797 207.0
D 2 249 76436 365.33 826 797 207.0

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