ASTROSAT CZTI

Data Quality Report

Orbit 38365

Creation date: 2024-06-27T21:51:44.047899
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/AS1A10_094T24_9000005374_38365cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38365cztM0_level2_quad_clean.evt
Size (bytes)506,692,80094,789,440
Size483.2 MB 90.4 MB
Events in quadrant A3,180,649657,241
Events in quadrant B3,466,852668,117
Events in quadrant C3,010,530637,888
Events in quadrant D8,640,825494,811

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132123
B0143292
C0127032
D0298072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5897270.457860%
B58971302.204511%
C5897831.407495%
D5897109918.636595%

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 7271 5898 13 13 0.18% 0.22%
B 7271 5898 61 61 0.84% 1.03%
C 7271 5898 67 67 0.92% 1.14%
D 7271 5898 1005 1005 13.82% 17.04%

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 427663 3280.17 646 632 130.2
A 9 143 77298 588.9 646 632 130.2
A 13 248 53810 408.48 646 632 130.2
B 0 183 274967 2239.97 645 628 122.5
B 15 35 142308 1156.81 645 628 122.5
B 0 186 96323 781.35 645 628 122.5
C 15 214 248417 1679.8 632 635 147.5
C 1 23 119197 803.77 632 635 147.5
C 10 223 95554 643.49 632 635 147.5
D 10 203 5418565 36664.28 601 584 147.8
D 12 235 179759 1212.5 601 584 147.8
D 12 227 175819 1185.84 601 584 147.8

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