ASTROSAT CZTI

Data Quality Report

Orbit 09772

Creation date: 2024-06-27T15:50:28.565705
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/AS1A03_080T01_9000001392_09772cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09772cztM0_level2_quad_clean.evt
Size (bytes)496,114,56085,904,640
Size473.1 MB 81.9 MB
Events in quadrant A3,476,640523,508
Events in quadrant B3,749,787525,779
Events in quadrant C3,470,196529,475
Events in quadrant D3,827,629509,968

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01527217
B01587713
C01531111
D0161646

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73601351.834239%
B73621932.621570%
C73631411.914980%
D73651632.213170%

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 9462 7369 0 0 0.00% 0.00%
B 9462 7369 8 8 0.08% 0.11%
C 9462 7369 0 0 0.00% 0.00%
D 9462 7369 16 16 0.17% 0.22%

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 8097 39.63 901 881 182.1
A 12 194 7320 35.36 901 881 182.1
A 3 137 4194 18.2 901 881 182.1
B 4 48 68683 392.3 907 884 172.8
B 0 214 64501 368.11 907 884 172.8
B 10 245 55530 316.2 907 884 172.8
C 13 61 6517 27.52 888 891 204.5
C 8 222 3641 13.45 888 891 204.5
C 9 54 3248 11.53 888 891 204.5
D 1 52 253655 1166.45 879 855 216.7
D 7 46 101889 466.19 879 855 216.7
D 2 152 54818 248.99 879 855 216.7

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