ASTROSAT CZTI

Data Quality Report

Orbit 48046

Creation date: 2024-09-04T20:32:26.682101
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_037T05_9000006392_48046cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48046cztM0_level2_quad_clean.evt
Size (bytes)659,226,240134,786,880
Size628.7 MB 128.5 MB
Events in quadrant A9,332,629851,973
Events in quadrant B4,203,087944,135
Events in quadrant C3,966,410898,082
Events in quadrant D6,230,305785,888

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0341522
B0187060
C0183060
D0246440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86496467.469072%
B8650941.086705%
C8650320.369942%
D86504465.156069%

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 8649 8649 373 373 4.31% 4.31%
B 8650 8650 30 30 0.35% 0.35%
C 8650 8650 21 21 0.24% 0.24%
D 8650 8650 346 346 4.00% 4.00%

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 10 83 4567144 22834.91 953 934 200.0
A 14 248 1059257 5292.51 953 934 200.0
A 7 3 18096 85.82 953 934 200.0
B 7 221 97439 487.19 986 953 198.0
B 5 32 80746 402.9 986 953 198.0
B 5 255 63428 315.46 986 953 198.0
C 12 2 126803 545.68 974 978 230.6
C 0 207 11683 46.43 974 978 230.6
C 10 20 9137 35.38 974 978 230.6
D 2 165 1319171 5537.48 947 919 238.1
D 11 224 481245 2017.67 947 919 238.1
D 2 249 366264 1534.68 947 919 238.1

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