ASTROSAT CZTI

Data Quality Report

Orbit 09464

Creation date: 2024-06-27T15:46:29.218961
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_051T01_9000001346_09464cztM0_level2.evt modeM0/AS1A03_051T01_9000001346_09464cztM0_level2_quad_clean.evt
Size (bytes)627,390,720131,523,840
Size598.3 MB 125.4 MB
Events in quadrant A4,861,286877,798
Events in quadrant B4,175,428875,246
Events in quadrant C3,902,851849,806
Events in quadrant D5,504,506810,105

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196893
B0177542
C0172312
D0217162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82112332.837657%
B82111221.485812%
C8211851.035197%
D82114725.748386%

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 10576 8213 45 45 0.43% 0.55%
B 10576 8213 2 2 0.02% 0.02%
C 10576 8213 0 0 0.00% 0.00%
D 10576 8213 330 330 3.12% 4.02%

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 8 5 554829 2638.21 1046 1027 209.9
A 1 162 118441 559.34 1046 1027 209.9
A 1 178 42212 196.2 1046 1027 209.9
B 0 214 75826 380.26 1037 1013 196.7
B 12 111 20645 99.79 1037 1013 196.7
B 11 111 16875 80.62 1037 1013 196.7
C 13 61 7619 28.69 999 1004 230.6
C 5 128 4359 14.55 999 1004 230.6
C 3 202 2552 6.71 999 1004 230.6
D 15 217 555855 2356.31 984 961 235.5
D 8 195 400741 1697.63 984 961 235.5
D 13 104 274604 1162.0 984 961 235.5

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