ASTROSAT CZTI

Data Quality Report

Orbit 20250313_C07_001T01_9000006454_level2

Creation date: 2025-03-26T11:04:12.403788
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/AS1C07_001T01_9000006454cztM0_level2.fits modeM0/AS1C07_001T01_9000006454cztM0_level2_quad_clean.evt
Size (bytes)4,714,300,8006,699,280,320
Size4.4 GB 6.2 GB
Events in quadrant A9,639,64014,402,727
Events in quadrant B33,308,13659,060,814
Events in quadrant C27,859,68239,314,494
Events in quadrant D29,142,56947,483,171

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09233080
B021103700
C036325630
D024270520

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151180
B0151230
C0151210
D0151390

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08430
B08420
C08440
D08430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2202924094118.584878%
B745295523817.028224%
C74445923925832.138506%
D7450867815510.489393%

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 264347 220563 0 0 0.00% 0.00%
B 863068 746232 0 0 0.00% 0.00%
C 863068 730521 0 0 0.00% 0.00%
D 863068 744707 0 0 0.00% 0.00%

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 14 188 10296 9.5 2542 2353 835.9
A 9 255 9927 9.06 2542 2353 835.9
A 14 95 8179 6.97 2542 2353 835.9
B 2 245 27021 8.95 8901 8435 2076.7
B 9 173 27011 8.94 8901 8435 2076.7
B 3 25 26289 8.6 8901 8435 2076.7
C 2 31 22969 6.34 7541 6907 2535.2
C 15 127 22577 6.18 7541 6907 2535.2
C 7 221 21889 5.91 7541 6907 2535.2
D 6 218 37185 10.58 8368 7416 2814.6
D 3 30 28754 7.58 8368 7416 2814.6
D 15 11 26663 6.84 8368 7416 2814.6

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