ASTROSAT CZTI

Data Quality Report

Orbit 43011

Creation date: 2024-06-27T22:46:52.885012
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/AS1T05_148T01_9000005838_43011cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43011cztM0_level2_quad_clean.evt
Size (bytes)439,908,480108,501,120
Size419.5 MB 103.5 MB
Events in quadrant A3,208,004796,784
Events in quadrant B5,047,428745,265
Events in quadrant C2,644,126761,627
Events in quadrant D4,986,976623,664

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128102
B0184312
C0107482
D0183092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5119320.625122%
B51195009.767533%
C511960.117210%
D511961512.014065%

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 7272 5120 17 17 0.23% 0.33%
B 7272 5120 364 364 5.01% 7.11%
C 7272 5120 1 1 0.01% 0.02%
D 7272 5120 570 570 7.84% 11.13%

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 606394 4222.21 650 642 143.5
A 15 237 56916 392.24 650 642 143.5
A 7 3 21830 147.68 650 642 143.5
B 0 186 1786545 13832.63 625 614 129.1
B 4 171 666571 5158.05 625 614 129.1
B 3 112 83574 642.55 625 614 129.1
C 15 214 210808 1356.49 622 629 154.9
C 7 220 5763 33.13 622 629 154.9
C 13 61 4316 23.8 622 629 154.9
D 12 233 1045317 6684.92 594 578 156.3
D 1 52 902344 5770.09 594 578 156.3
D 13 249 173129 1104.09 594 578 156.3

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